Computer and Internet Security Issues that you Should Know

Using your computer and a reliable Internet connection can be the best combination for an ideal business opportunity. You don’t need raise too much capital for your business venture. With just a reliable Internet connection and computer system (which, because of wide availability and usage, become cheaper), you will be able to start your business right away and earn hundreds to thousands of dollars every month, depending on the online business opportunity that you would prefer.

However, you must be aware of the miscalculations that you can commit along your online business venture, especially when you forget to prioritize the protection of your computer system from unauthorized use and data theft. Contrary to the popular belief that a small-size Internet business will make them safe from data hackers and online intruders, there is also a great risk and danger involved once you neglect to protect your computer system, especially the hacking and computer destruction activities that are increasing significantly as the Internet evolves over the years. Most small-time Internet entrepreneurs are blinded by the fact that they are not exempted from these notorious data thieves, which is not true nowadays.

According to a research conducted by AMI-Partners, almost 50 percent of small and medium-sized online businesses failed to execute even the most basic security protection, which includes the installation of anti-spyware and anti-virus programs to their computer systems. This is one of the main reasons why the Mydoom worm triumphed, affecting one out of three small and medium-sized online businesses compared to one out of six large Internet companies. This was also discovered by the ISA or the Internet Security Alliance, a non-profit organization that handles information security issues. In other words, we can conclude that even small online businesses are more vulnerable to online threats of data theft and electronic sabotage.

In fact, every small online business owner must give data and network protection more attention due to the sophistication of data thieves. These thieves have now one of the advanced software programs and hardware necessary to break into the security measures implemented by data mangers. It would be a great waste of time and financial resources if your computer is left unguarded against these advanced data thieves and online hackers. You are on the verge of losing everything—including your computer, which is also a valuable investment.

Thus, it is important that you should consider data security and encryption as one of your top priorities. Keep in mind that your computer system is always vulnerable to this kind of attacks, even if you are just starting up. In fact, big businesses have more chances to recover compared to small business since big business have necessary funds available to recover from mishap. On the other hand, your small business has meager funds to start with your business—and an attack will be catastrophic for your small business.

There are hundreds of software providers that came up with latest solutions to guarantee the safety of your computer system. In addition, there are also Internet security services to guarantee protection of your online data against Internet hackers. By incorporating high level of encryption technology, hackers will have a hard time intercepting the data being stored in your computer system or while it is transmitted to a certain network of computer systems.

Always explore your options. Prioritize what is important and avoid getting caught by a catastrophic incident that will shut down your small business at an instant.

The New Age Of Communications For Businesses And Individuals

The new way for individuals and businesses to conduct phone conversations and conference calls is with Voip communications. The idea of finding a company that allows you to communicate over the internet has allowed many people to conduct business meetings and to keep in touch with family and friends. You no longer need a landline with a local phone company to talk around the world. When you add the video option to the package, you can conduct conference calls with business partners and associates as well as friends and family while seeing the person or persons you are talking too. This feature is for both phone and computers. Vonage has gained popularity with people looking for the Voip option. You have a box that that hooks up to your phone line and it has a broadband connection. With this company, you can have unlimited international and local calls for a set amount a month. Many other companies offer the service as well, with different plans and options. The Voice over IP system helps people who need to work at home or you have a need for a lower phone bill other than what their local phone company has to offer. The only drawback to having the Voip phone system is that you also have to sign up for a 911 service. Since you have the ability to select an area code other than the one you reside in, this can cause problems if you have to use the system. Many people do not realize this and have encountered problems. You are also going to pay an additional charge for the 911 service. This is a great way to save money if you already have a broadband connection. There are other options to the Voip telephony system as well. One thing to keep in mind about using the Voip calling system is that depending on the type of service you have, you may need a different phone to use with the new phone system, it will have a USB plug, but they are relatively cheap. This is the only downfall to the Voip telephony because if you lose power you will lose your phone service. Video conferencing is also hitting the top of the hot computer topics list because of the convenience and affordability that it offers. You can do this via computer or through a Voip line. You will more than likely need a software program for the computer, but this also depends on the system, you have to use. If you use the computer software, you can hook up every computer in your business that is connected to the network. This is becoming more popular because employees can remain at their desks and still participate in conferencing meetings. This is the hottest thing since the computer or the internet. Businesses everywhere are switching to this type of communication within the company as well as outside the company communications. Because of this communication, businesses and individuals have more options for communicating rather than a landline with a local phone company or a cell phone. Look for more upgrades in this type of technology as more and more people start to rely on this as a sole means of communication in the very near future.

The Results Of A Hacker Finding Your Personal Information

Everyone has heard of the latest scandal regarding the Monster.com site being hacked and vital information for over one million people being stolen. Now what would a hacker want with the information some would wonder? The though behind a hackers motives in most cases, is to just be able to hack the site that says it is “hack proof”. In other cases involving fraud, it is to obtain your personal information and either uses it for spamming or to sell it to scam artists. In any case, a site that is hacked has legal responsibilities one would think. The latest Monster.com scare is more than likely just the theft of work history and name along with references. Now if the information also included Social Security information or annual salary requirements as well as cell phone numbers and credit card or bank information, people are going to have major problems. This type of activity happens all the time, but we only hear about the big news companies such as Monster.com or others in the spotlight. Now if a pet product site that is just starting out and is not a well-known name, they are not going to divulge that information and if they do, it will not make the news headlines. Everyone uses the Internet for one reason or another and if you are like most people, you may shop, look for work, play games or just browse. In any cases, you need to be careful how you supply your information. A secure site to display your information needs to contain encryption to protect your information if it is for buying and gaming as well. Anytime you give out personal information about yourself, you want to know your information is protected. With the latest scare with Monster.com, people have to wonder, what will they do with that information? As hackers become more devious in their endeavor to hack into websites and steal the information, more IT technicians will work harder to make the sites and products to secure the sites even better. All the scares that we encounter with our Internet experiences are just another form of criminal activity, unfortunately, it can cause problems for the entire world. Protecting yourself and your computer from a hack attack is top priority and every day, businesses are upgrading their systems and infrastructures to protect vital information. The best way to protect yourself some had said is, never give out personal information. Unfortunately, this is not always possible. If you want to shop, look for work, do some gaming or sign up for important newsletters and promotions, you have to supply the pertinent information. Therefore, using a little caution as to what sites you use is great, but as it was proved with Monster, even the best of sites can endure problems. This however, is no reason to stop using the Internet. You just need to be aware of the treat and use good judgment when you visit a website. Some day we will see a system to track and stop hackers from stealing vital information. Companies who make the software and other software for security measures work hard every day to find new ways to stop a hacker. As the hacker gains more strength, software developers gain more security knowledge to stop them in their tracks.

Laptops Coming With 1.2TB Hard Drives

Some companies have successfully shown that it is completely feasible to have hard drives of 1.2 Terabytes in the very near future. It is not a very well kept secret that the news of laptops coming with 1.2 TB hard drives is being reported in many magazines and online zines. This is big news for those people who find that they want more memory and speed from their laptop computers. This will allow them to run many higher end programs and memory-heavy applications in a much better way. The laptops coming with 1.2 TB hard drives will have many more features and power-saving applications than the laptop computers that people are used to using. While many people use their home computer systems exclusively for their work and entertainment, there are many more that use laptop computers at both work and at home, completely replacing their home personal computer as their main system. The new laptops coming with 1.2 TB hard drives will have many more applications for computer users who like to use their systems for entertainment. The ability of laptops to play and store movie files easily on the hard drives is going to be even more popular with the laptops coming with 1.2 TB hard drives. For individual computer users this will mean that the amount of memory and processing power will be much better and faster than what they have in their laptops now. The goal of these companies is to produce a hard drive system that can be implemented in the same space as the existing hard drives but offer much higher levels of processing speed and storage capacity. The laptops coming with 1.2 TB hard drives will make it much easier for laptop users to run the same sort of memory-hungry applications as computers at home and at the office. Being able to work on large computer applications at home on the laptop computer is a big bonus for many people who do not want to be chained to one area in their homes. The ability of the laptop computer to allow them to work anywhere is a very popular aspect to their use. Being able to use these higher-powered laptops in situations where they once simply did not cope well with applications is one of the major selling points for businesses looking to upgrade their laptops. The ability of their employees to be able to have access to the same sort of allocations while on the road or away from the office is a very attractive aspect of this new announcement. Being able to have higher capacity hard drives in the same space and weight as the older laptops will improve many aspects of business program applications. Some businesses that specialize in creating complex business programs can now use the ability of laptops to have larger hard drives as the backbone of their target audience. The applications can be as simple as spreadsheet programs or as complex as computer business forecasting model programs. The larger capacity of the hard drive will mean that the laptop will not slow its processing times down at all because of too much data stored in the hard drive. It will take a long time to fill up a 1.2 Terabyte hard drive. Laptops have come down a lot in price over the past few years and more people have started using them, both in the office and on the road. The largest change to the demographic of the laptop, however, is that more people have started using their laptop computer as a replacement for their home computer. When once, laptops were only used for portability, they now have become so powerful that they can do everything that home computers can – and more. The laptops of today have much larger screens than they once did, which was always something that laptop users complained about in relation to the larger screens on their home computers. With larger screens, faster processors and now the prediction of much larger hard drives on the horizon, it will not be long before laptop computers push many home based computer systems off the desk at home.

How Can You Tell If Your Computer Is Bot Infected

A bot is an important thing that a computer uses when on the Internet. A bot is an application that works to run automated activities for maintenance and protection when the user is on the Internet. There are some instances of where bots can be dangerous. So, how can you tell if your computer is bot infected? You can find out when you follow the tips mentioned here. How can you tell if your computer is bot infected? You can find out by seeing if your Internet activities have been involuntarily restricted. There are various different types of bots that can be dangerous to a computer. Some bots will cause denial of service attacks to take place. This is where the user who is trying to get it to work cannot access a resource that is on a computer. It will be impossible for you to access certain websites on the Internet. This is one of the main ways of how can you tell if you computer is bot infected. How can you tell if your computer is bot infected? You can tell if there is a good amount of computer viruses that are found on your computer during a virus scan. Even though a typical antivirus program will update itself often and do automatic scanning and protection, there can be instances where new viruses can sneak onto your computer that are not listed in the definitions that your computer program has. Many malicious bots will have these new viruses on them, so you should especially watch out for these when you are online. One of the best things to do to find out how can you tell if your computer is bot infected is by checking to see how much spam you are getting in your email account. Bots will be especially effective in creating spam that can be sent to infected computers. This can even affect email servers that have strong spam filters. The reason why these filters will be avoided when bots send spam is that in some cases multiple bots on multiple systems can work together to send different pieces of spam. This takes place through a botnet that can build up when one bot infects a computer and it spreads to other computers. One of the other things that can be used to help you tell if your computer is bot infected is if you live in an area that is near a bot control server. Bots have become a global problem in many countries that have control servers that send bots to other innocent computers. The United States has most of these servers, particularly in the Washington D.C. and Chicago areas. Atlantic Canada, Stockholm and Seoul also have large servers. These are areas that have the highest concern levels. Are there any products that can help you with understanding about bot infections and that tell you how can you tell if your computer is bot infected? Of course there are. You can check to make sure that your firewall and antivirus programs are fully updated and contain the latest patches. After you update the program, you can run a scan to see if your computer is bot infected. Prevention is an even more important thing to use though. Having a firewall program is helpful. Protecting personal information that you may be sending online should be used too, as you should only give it to legitimate sites that are trusted. Do not forget to avoid spam emails that may sound like a good deal. This is one of the main ways of how bots can spread onto a computer, and it can indeed be prevented. How can you tell if your computer is bot infected? You can tell by looking into the viruses and spam that you have in your computer. Making sure your computer is protected can help you to avoid them so that only good bots that help with computer processes will be on your computer.

Portable Media Inputs For Computers

Portable media is one of the most popular things that can be used. Whether it is for an MP3 player, a digital camera or something that is just used to transport files around, portable media can be used to easily transfer information from one computer to another. There are numerous portable media inputs to look into. The most popular of the portable media inputs for computers is the USB input. The Universal Serial Bus input is used to improve plug and play compatibility so that devices can be easily connected to a computer without having to restart the computer or install additional software. Flash drives are especially popular among USB inputs, but various other programs and hardware will use this. This includes MP3 players that use USB connections to connect the player to the computer or portable video players that work in the same way. Hardware for the computers have been using USB inputs too, including computer speakers, monitors and printers. An SD card is another of the portable media inputs for computers. Short for Secure Digital, this is a popular method of data storage for all different types of digital media. This includes digital cameras, GPS devices and PDA computers. Many of the top cards can hold multiple gigabytes of information. SD cards are becoming popular in these devices and more computers have built in SD card readers. SDHC cards, which are Secure Digital High Capacity cards, are also popular and can be read on these computers. These cards are known for using the FAT32 file system and can handle more than ten gigabytes of data. Most computers will have memory stick compatibility. This is one of the most commonly used portable media inputs for computers because it can be easily transported and can carry large amounts of data. This media input can write around two megabytes of information per second and can transfer more megabytes per second. This is one of the portable media inputs for computers that is continually evolving. Whereas an original stick would be able to handle sixteen megabytes of data, a Memory Stick PRO can handle more than a gigabyte of information and the Memory Stick Micro, which is smaller in size but can fit into a typical memory stick input, can theoretically fit up to thirty two gigabytes of data. CompactFlash is another of the portable media inputs for computers. This is an input that is used especially with digital cameras. Many computers today will have built in inputs for CompactFlash cards. Some of these cards will be able to handle data with sizes as great as that of four gigabytes. Professional film development stores that have machines that can read CompactFlash cards can even handle this type of portable media. Because of the ease of reading the data on the card, it is affordable to print pictures from a CompactFlash input at one of these stores. The last of the portable media inputs for computers is the SmartMedia card. This is a flash memory card made by Toshiba that is popular among digital cameras. Several considerations should be used with this input though. In addition, some devices will only be able to handle five-volt cards and not 3.3-volt cards. Some readers can handle cards of either voltage, and this is the case for most computers that have these portable media inputs for the SmartMedia card. Portable media is popular in that it is easier to store and move data between computers. These five portable media inputs for computers are among the ones that can be found on a typical computer system. Not only will these portable media inputs for computers read the data that is stored on cards and other devices, but in many cases they can be used to connect equipment that uses these cards and devices with ease.

What To Look For In A Computer Monitor

A computer monitor is important for any computer because it is what brings the world of computers to people visually. There are all sorts of different things to use for a computer monitor. Among the things to look for in a computer monitor, include the resolution of the monitor, its size, the type of display and the refresh quality of the monitor. The size of the pixels in the monitor should also be considered when you are considering what to look for in a computer monitor. The first thing to look for in a computer monitor is the resolution quality of the monitor. The resolution is based on the number of pixels that are in the monitor screen. When there are more pixels in the monitor the resolution will be better. For instance, a monitor with a resolution of 1600x1280 is better than a 1280x1024 monitor. The horizontal number of pixels is listed first followed by the vertical number. The next thing to look for in a computer monitor is the size of the monitor. The size of the monitor will refer to how big the screen is from a diagonal measurement. Sixteen-inch monitors are popular but there are other sizes available at typical stores that sell computer monitors. When looking for the monitor that has the right screen size the ability of the user to read what is on the monitor should be greatly considered. The display type that is used in a monitor is similar to what is used with a television set. Cathode ray tubes are used in larger monitors that have picture tubes working to display images. Liquid crystal display monitors are becoming more popular. This uses a liquid film to display images and is incredibly popular because of the thinner size of the monitor. It should be noted that the display type is going to make an impact on the colors in the monitor. A cathode ray tube monitor will be easily visible from multiple angles and will do a better job with displaying images. However, a liquid crystal display monitor will be able to bring out higher quality resolution for images. Technology for this is improving though. In fact, it is easier to place on a typical desk because of the smaller width of the monitor. The refresh quality of the monitor is another thing to think about when looking for a computer monitor. This refers to the highest number of vertical scans that a monitor can produce. A typical monitor will have a range between seventy and two hundred vertical scans per second. When the monitor has a higher number of vertical scans per second that means that monitor will be able to refresh what is on it at a faster rate. There will be less flickering when there are more vertical scans in a second. While the number of pixels in the monitor is one of the things to think about when you consider what to look for in a computer monitor, the size of those individual pixels should be considered also. Each pixel will have a size in a specific amount of millimeters. The size will determine the dot pitch in the monitor. A typical dot pitch for a quality monitor will be .25. This means that the pixel will be especially small and less than a millimeter in size. Overall, when the dot pitch is smaller the monitor will be better. This means that greater levels of resolution can be created on smaller monitors. That is what to look for in a computer monitor. The resolution, size, refresh quality, display and the pixel size should all be considered when looking into buying a computer monitor. Not all computer monitors will be the same, so it is important to look into all of these aspects so that it will be easier to find a monitor that is right for one’s individual needs.

Customizing Your Computer with Preferences Making Your Computer Work with You - Not Against You

Although you did not design or build your computer, you can turn it into a device that responds to your way of using it as if you were its original engineer or programmer. This is because the computer is a mere platform - a blank canvas, if you will - waiting for you to direct its operation or paint the picture of the perfect machine. All this is possible from making just a few changes in your computer's current configuration. Your computer's main configurations are housed in Windows Control Panel. Within this small section of Windows, you can make some major changes from the way that your computer looks to the way that your computer responds to the people who use it. But your specifications don't just apply to Windows, they also apply to the many software programs that are installed onto the computer (not to mention that many software programs can be further customized through their own configurations). We aren't going to cover them all, but we will introduce some of the most popular so that you can get a feel of the control over your system that these configurations give you. Users. Before we get into the individual settings, it's important that you understand that each set of configurations you make is specific to the users that sit down in front of a computer. Changes made to a system by one person will differ from the changes made by another. Enabled by a username and password, individual desktop settings (icons, background picture, and other settings) are available after logging onto Windows. Display Properties. Through Display Properties, a user can change the background of the Windows Desktop, add a screensaver, change the overall color scheme and fonts of Windows, and adjust a computer's color depth and/or resolution (screen area). Not just a bunch of preference settings, display properties help individuals who have to deal with visual problems. Accessibility Options. Speaking of visual problems, another setting that's useful is accessibility options. This setting allows people with disabilities to use a computer that accommodates vision and hearing problems. Keyboard and Mouse Options. The keyboard and mouse controls give users the option of speeding up or slowing down the movements of both of these peripherals. For those entering the United States from a foreign country, users will appreciate how Windows grants use of keyboard layouts native to their original language. Other uses will appreciate the different selection of cursors and the ability to add additional ones. Passwords. Since the computer in use may be shared with others, Passwords gives the almighty administrator the means to determine whether all users will share the same preferences and desktop settings or if users can customize preferences and desktop settings. Regional Settings. Things get really personal in Regional Settings - as this configuration makes changes according to a user's location and language. Options available can accommodate a person's preference for the display of numbers, currency, time, and date format. Sounds Properties. Multimedia fans can create a rich PC environment filled with sound through this setting. Sounds can be assigned to numerous events and they don't even need to be the default sounds installed by Windows. Users can download sounds from the Internet or create their own sounds with a microphone. Dialing Properties. Even the way a user connects to the Internet can be customized. Through Dialing Properties, users can determine how a phone and modem dials into an Internet service provider. From just these basic configuration options, you can create your own experience with a computer each time you sit down in front of one. Customizing your PC is what makes using a computer truly unique and enjoyable, so have fun and build a situation at home or a work in which you'll love to work with everyday. Should you feel a little nervous about it at first, remember that your computer's original configuration can be saved to a back up file should you ever want to restore it to the same state that it was in when you first bought it.

Computer Security In Today's Society, Protecting Your Computer Is A Requirement

Advances in computer technology is a double-edged sword. On one hand, it affords us quick and easy access to numerous conveniences such as bank statements, favorite shopping centers, school and health records, and more. On the other hand, it can also grant the same access to those who aren't supposed to get it. Although it's a rare occurrence, hacking has become the biggest criminal nuisance in computer history. Make no bones about it. There's nothing innocent or cute about the hacker. Today's hackers aren't the pimply-faced teen rebels that you might be thinking of. Instead, this generation of hackers are grown individuals who are more than likely earning a living by stealing the identities of innocent, law abiding individuals and then selling those identities to others who want to slip by the system. And the only protection against these seedy people is prevention. Computer security couldn't be more important than it is today and that's why we've taken the time to introduce it to you. You can reduce the probability of experiencing identity theft by making your computer as hacker-proof as possible. All that's needed is a little software and a lot of common sense. 1. Install an anti-virus/anti-spyware program. Anti-virus/anti-spyware software will stop malicious code from downloading and installing onto your computer while you peruse the Internet. Known as viruses, worms, or spyware, this malicious code can destroy important files and render your computer good for only one thing: sending sensitive data back to the server of an identity thief. 2. Don't store sensitive data on your computer in the first place. Should your computer get infected with a virus, worm, or piece of spyware, you can thwart the individuals responsible by not storing your personal information on your PC so that when and if your computer does send back data - it won't be anything valuable. Hackers look for things like full names, social security numbers, phone numbers, home addresses, work-related information, and credit card numbers. If these things aren't saved onto a computer, there's nothing critical to worry about other than restoring your computer to a non-virus condition. 3. Don't open files without scanning them with an anti-virus/anti-spyware program. In the past, the warning was to avoid opening files from people that you don't know. Today it's really not safe to open files from anyone (without scanning the files) because that's how viruses get spread - through files - even by mistake. So even though your co-worker may have emailed a funny video, it's no more safe to open than a video downloaded from a complete stranger. Be safe and scan each and every file you download from the Internet or receive through email regardless of where it came from. 4. Create a barrier between your computer and prying eyes. Anti-virus/anti-spyware programs are only effective after the effect. But you can prevent identity theft from occurring by installing a firewall. A firewall is software that checks all data entering and exiting a computer and it then blocks that which doesn't meet specified security criteria (user-defined rules).1 5. Don't click on website links in spam messages. In an effort to obtain personal information, some spammers will send email that asks you to click on a link. The email messages are often disguised as important messages from well-known online establishments, and they often try to scare their readers into clicking links with threats of closing an account of some sort. Sometimes the links are harmless and attempt to con the reader into volunteering personal information (credit card number), but other times the links attempt to download harmful software onto a computer. Your best protection against computer crimes is your own knowledge. Hopefully the suggestions above will prompt you into taking appropriate action and into protecting your computer with the suggested tools. In doing so, you'll not only protect yourself, you'll prevent the spread of these malicious activities and protect others at the same time.

Computer Help Where and How to Get It

Well there's no denying it - No matter how new or how well maintained our computers are, we all encounter computer problems sooner or later. The good news is that we don't have to face them alone. There are a ton of resources available to walk us through computer issues but it may take a little knowledge in knowing how to access them. This article will show you how. 1. Remember help files. It's funny, but people seem to forget that every computer and every program installed on a computer comes with its own help file. Even the operating system of a computer has a help file and it really should be the first place to look for answers. Help files are designed not only to guide the usage of a computer, they're also designed to solve problems. Inside a help file, look for a section called, "Troubleshooting" (or something similar) when you need to resolve an issue. This section is reserved for solving problems specific to the software or hardware that you're using. 2. Product websites. If you're having a problem with a piece of software or with a hardware part, try the website of that software's or hardware's manufacturer. Most (if not all) manufacturer's reserve a portion of cyberspace and dedicate it to support the products that they build. Microsoft's help desk is good example. 3. Fan sites. Fan sites probably isn't a good name for this resource, but you can find websites that are dedicated toward supporting the users of a particular software program or piece of hardware. We've called them "fan sites" because the maintainers of these sites have no affiliation with the manufacturers that they support! Call them what you will, but their free help is immeasurable and without it, we wouldn't have some of the wonderful workarounds and unique problem solving techniques that we have today. 4. Usenet newsgroups. Another underused resource on the Internet, Usenet newsgroups have hundreds of discussion groups dedicated to some of the most popular computer systems, operating systems, hardware manufacturers, and individual software programs. Sometimes, the representatives of these companies participate, but most of the time, the support in this group is user to user, which is just as valid because you're working with a team of experienced people. 5. Support Lines. Another source for help that we shouldn't forget are the support systems of various manufacturers. You can reach these systems by calling the phone number associated with the product that you're having trouble with. Calls may be free (1-800 or 1-877 number), or they may cost a small fee (1-900). 6. PC support groups or user groups are another option for help. These are groups that meet in libraries, computer stores, or other local areas and they discuss all sorts of issues related with a particular product. Even if you aren't experiencing a computer or software problem, user groups are fun to participate in and they can help you network into other interests such as job or teaching opportunities. 7. Surprisingly, you may even get a helping hand from the salespersons at your local computer store. We don't recommend that you make this your first pit stop when you experience a problem, but we don't recommend that you rule this option out altogether either. Computer salespersons are hired for a reason - and that's their knowledge. Often, these kind folks can help you resolve an issue over the phone and prevent you form having to buy a costly solution. As you can see, help is easy to find - You've just got to know where to look for it. Most of the contacts within these resources are extremely friendly and willing to take the time to walk you through a problem at little to no cost. From online discussion groups to the files on your own computer, help is often just a click away.

A Few Common Computer Errors (And What They Mean)

Computer errors can pop up when least expected, they can cause the entire system to suddenly shut down, and they can inadvertently corrupt data to the point where it can't be deciphered. Although they can't always be avoided, it's important to remember that computer errors can be corrected. The key is to understand what computer errors are, understand what they mean when they show up, and understand how to minimize their occurrence in the first place. Basically, computer errors are the result of a number of things that may or may not have anything to do with the way the computer is used. They "operate" whenever there's a conflict among commands. Remember that computers essentially run off of a series of commands and it's usually a smooth process. But when one command conflicts with another command - or when one command asks for a process or information that isn't available, the computer returns results that aren't useable. That's an error. A prime example of this kind of error is when users attempt to use software that isn't applicable for their system. Almost all software accompanies a list of system requirements which dictates what a computer needs to have in order for the software to work properly. To minimize errors of this sort, always verify that your computer has the required components. A project management program that you're interested in may require a specific operating system, like Windows XP for example. And although this program may install just fine on a Windows 98 machine, it will generate a multitude of errors once its started. Insufficient memory will cause errors as well. That's why software programs include minimum memory requirements. A program that needs 14MB of memory will generate errors on a computer that only has 4MB of memory if it runs at all. The same goes for disk space, monitor color depth and resolution. In these situations, problems occur the moment that a piece of software attempts to access the things (hardware, memory, space, resolution, etc.) that it cannot find. Because some programs share common files, errors can also occur when these shared files are not up to date. For instance, let's say that Program A is already installed on a computer and it's working just fine. Then let's say that the user of that computer downloads and installs Program B. Program B uses a file that Program A installed much earlier, but when Program B is run, errors popup. Those errors are the result of Program B attempting to use an outdated (shared) file that was installed by Program A. In order to fix that problem, the user would have to download an updated version of the shared file (which to say the least - is not an easy thing to find or do). Sometimes, errors occur because a system doesn't have the required drivers or the drivers that are on the system are the incorrect version. Both errors in these cases can be resolved by updating the computer on a regular basis. Microsoft provides a section on its website that can automatically update a computer online and it does this at no cost in an effort to reduce errors like this. Always try to keep your computer updated so that should a program share a file, it will share a file that has been updated on hundreds of thousands of computers, like yours. This article doesn't even begin to cover the entire gamut of computer errors - but additional information regarding how to get help with a computer issue (including computer errors) can be found in our article titled, "Computer Help" no matter what the problem is.

When Less Is More Clean Your Disk Drive of Unnecessary Files and Your Computer's Performance Will Improve

When it comes to maintaining your computer, you've probably heard it all before. "Run Defrag!" "Scan Your Disk for Errors!" Although these two activities are important, there's more you can do to extend the life of your computer beyond today's predicted two-year span. In fact, by following the simple advice below, you can enjoy the use of your computer to up to five years or more - reserving expenses to simple software upgrades rather then complete and costly hardware upgrades. One of the easiest and least expensive things you can do to extend the life of your computer is to get rid of unnecessary programs, folders, and files. A disk drive that's clogged with unnecessary and unused files is disk drive that works harder than it has to. Although Window's defrag system can ease some of the stress that these files place onto the drive, it doesn't do much to get rid of the problem in the first place. This is because the defrag program simply organizes the files in a system that makes it easier for the computer to access. (Thus cutting down on the work required to find and load them). But this method merely "relieves" the symptoms that these files induce - it doesn't attack the cause. These files need to be deleted - not "organized!" Of course, deleting files can be a scary adventure to most users. Most computer users don't know which files are safe to delete and which aren't. The worst thing anyone could do is snoop around crucial Window directories and haphazardly delete files that don't look familiar. Doing so could render important programs inoperable, corrupt the Windows operating system, and possibly prevent the computer from even starting. That's why using special deletion software is so important. Deletion programs will analyze a computer's operating system and installed programs to determine which files are crucial to computer function versus which files are safe to delete. You already have such a program on your computer and it's Windows' Add/Remove Programs (available from the Control Panel). This software will assist you with deleting programs that you not only no longer want, but additional files that these program use as well (dynamic link libraries, database files, registry references, shortcut icons, etc.). But sometimes Windows' Add/Remove Programs isn't enough. Although this software does a pretty good job of removing unwanted programs, it can leave some files behind even after a complete uninstall - files which become orphan files. And it's these orphan files that can really clutter up a hard drive and shorten the life of an otherwise, young and robust PC. Orphans are usually files that contain temporary data created by a program, files created by the user, partial files left over from a computer crash, or any other kind of miscellaneous files created for almost any other reason. The problem is that an uninstall program doesn't delete the orphan files it leaves behind because they were never part of the program when it was first installed. An uninstall program can remove only the files it placed onto a hard drive during its install routine. So while Windows' Add/Remove Programs can remove an entire program, you'll need to get rid of those pesky little things with a more advance file cleaner like CleanSweep for example. CleanSweep is a unique program that will specifically seek out files that are no longer associated with a program, and then ask if you want to delete them. The only time that you wouldn't want to delete an orphan file is if the file were an actual document that you created before deleting a program. If you were to say, uninstall Microsoft Word, all the documents that you created with Word would then turn into orphan files. Or if you were to uninstall a graphics-editing program, all the pictures you made with the program would become orphan files. The smart thing to do when you don't want to lose the data that you created with an unwanted program is to: 1. Save or convert your documents to a format that will work with different program first (that is, a program that you intend to keep) 2. Archive them onto a floppy disk, flash drive, or CD-ROM 3. Proceed with a program like CleanSweep. Using CleanSweep or any other similar type of utility could delete anywhere from less than a megabyte of hard drive space to over five megabytes and up. That may seem like a small amount of "clog material" to you, but to your computer, it's a lot less to process!

What's That File?An Introduction to File Extensions

In an effort to be "user-friendly," Windows (and perhaps some other operating systems) hides the most important part of a file name from new computer users: the extension. Okay - we're assuming that the reasoning behind hiding extensions is a "user-friendly" one because we just can't come up with any other reason for hiding them. No harm could ever come from seeing an extension, but plenty could be learned from it. Fortunately you have this article to guide you through some of the most common extensions that you'll run into. But before you can see file extensions, you need to turn them on. From Windows Explorer, click on the "Tools" menu, and select "File Options." Click the "View" tab and then uncheck the box next to "Hide file extensions for known file types." Click "OK" and you'll notice that the files in Windows Explorer show a dot and group of three letters after their names. That dot and group of three letters is known as an "extension," and the extension explains what kind of file it is. A file could be a plain text file, an image, a sound, a video, or program. But without seeing the extension, you wouldn't know it unless you double-clicked on it. The following list defines some of the most common extensions that you'll find on your computer. .au - This extension indicates a sound file. Most sound players will load up and play this kind of file. .art - This extension indicates an image file that was compressed with AOL (America Online) technology. Both Internet Explorer and the AOL service software can display this kind of file, however if you don't have AOL installed on your system, Internet Explorer will display it. .avi - This extension indicates a video file playable by most multimedia viewers including Microsoft's Media Player. .bmp - This extension indicates another image file that might have originated from Windows Paint program. .dll - This extension indicates a Dynamic Link Library which may contain additional programming code for software. Many different programs often share Dynamic Link Libraries and you'll find a bunch of them in the Windows/System directory (but don't ever delete them)! .exe - This extension indicates a program or an application like Microsoft Word, Internet Explorer, or Outlook Express. Use extreme caution when downloading .exe files from the Internet since malicious programmers like to hide viruses in these types of files. .gif - This extension indicates another image file and it stands for "Graphics Interchange Format." .Gif files are often smaller than .bmp files (described earlier) and they're commonly found on Internet web pages. .jpg - This extension indicates yet another image file and it stands for "Joint Photographers Experts Group." Like the .gif file, it's commonly found on Internet web pages, however it's much smaller than both the .gif image and the .bmp image. .mid - This extension indicates a sound file created with a Musical Instrument Digital Interface. Windows Media Player will open and run these files, however they don't sound like normal .wav or .mp3 files (described later). .Mid files are designed to product synthetic sounds using a computer's sound card. .mp3 - This extension indicates a sound file that authentically reproduces voice and/or music. Windows Media Player will open and run this kind of file. .scr - This extension indicates a screen saver file. .sit - This extension indicates a Macintosh archive StuffIt file. They will not open on a Windows system without a special utility. .ttf - This extension indicates a font especially designed for use on a Windows system. It stands for "True Type Font." .txt - This extension indicates a plain text file that can be opened with Notepad. .wav - This extension indicates a sound file that like the .mp3 file, can be opened with Windows Media Player or Windows Sound Recorder. .Wav files are much larger than .mp3 files. .zip - This extension indicates a Windows archive WinZip file. They will not open on a Macintosh system without a special utility.

Protecting Children Online Steps Toward Making Your Computer "Weirdo-Proof"

It's an unfortunate fact of reality, but children are the most victimized computer users on the Internet today. The good news is that there are some practical steps you can take to protect your children from sexual predators, hackers, and other seedy individuals who want to cause harm. This article will describe a few of them. The first step in protecting your children at the computer is to prevent their access to passwords. This will keep them from sharing passwords with others and inadvertently enabling hacking into your system. If you think about it, there's no reason why a five, seven, or even twelve year old needs to know the passwords to sensitive areas on the computer unless you've given them permission! In fact, children don't need to know the password used to access the Internet either. It may be a hassle to type it in each time they want to get online, but it's better to know the times that they connect than to have them sneak online without your permission and knowledge of their activities. The second step towards protecting your children online is using the computer together. Siting next to your child while he or she peruses the Internet, you can guide him or her to make safe and intelligent decisions. You can approve websites and bookmark them together. You can monitor the conversations your children have with their friends and teach them appropriate online behavior at the same time. You can make recommendations and create a private time for quality time as well. The third step involves blocking access to inappropriate areas altogether. You and your children may not always agree about what's appropriate, but as a guardian, you're in control and you're ultimately responsible for their safety. Take the time to investigate software tools that put you in control and allow you to block access to certain websites. If you use an online service like AOL (America Online), you can use its internal Parental Control settings to block access to various chatrooms and websites. You could even block instant messaging and email from anyone who isn't a fellow AOL user. Other tools available online operate similar to the way that AOL's Parental Control settings work, however no collection of tools could replace the reinforcement of mom and dad. Never let your children speak with strangers and never leave them alone at the computer unattended. Children just don't have the experience that adults have and they don't have the skills required to handle inappropriate conversations, emails, or images found online. NOTE: Some of these tools include kid-specific web browsers that will visit pre-approved websites. Others include browser plug-ins that won't allow access to online areas that contain forbidden keywords. Another step requires teaching your children to never ever volunteer personal information. Under no circumstances, should children give their personal names, home addresses, phone numbers, or school information to anyone over the Internet regardless of the situation. In the even this information is required to enter a contest of some sort, be sure that you're the one who makes the decision to supply it and that you're the one who does it. Performing all of these steps won't be easy. However you can help minimize resistance to your monitoring efforts by explaining why you're taking these precautions. Smaller children will probably enjoy the time you spend together at the computer, but older children and pre-teens may resent it. To help build a case for your concern, you might want to show your older children a few news stories that exemplify the dangers that unsupervised children are exposed to. The newspaper is unfortunately full of examples but with your help, we can reduce them world-wide.

Open Source Software

If you've spent any lengthy amount of time on the Internet, you've probably heard of open source software but might not have fully understood what it is and why it even exists. This article will describe this recent phenomenon and describe some of its benefits for the software using community. In a nutshell, open source software is software made by everyone - for everyone. The hopes behind its development is that through its open access, it will evolve into something that represents the true desires of computer users. Through a wide network of user involvement, the software in question is enhanced and debugged without costs or administrative politics. Traditionally, software is developed behind closed doors. A team of professional coders build it but the community at large isn't part of its conception. It's costly to produce and as you can probably guess, that cost is passed on to the end user: the consumer. Open source software on the other hand is free. Free to download, free to install, free to use, free to modify, and free to share. Started over twenty years ago, it's a phenomenon that is gaining in both popularity and exposure. In its first conception, open source gave birth to the World Wide Web as we know it today. The Internet as a whole is the result of free permission to access the web, use the web, contribute to the web, and share the web with others. But it certainly hasn't stopped there. In the not too distant past, Netscape converted its once commercial version of its Navigator web browser to open source. And today, open source is venturing into the commercial realm as well. At first thought, the idea of open source may sound just plain crazy to those who earn a living from software development. But the facts point to a different prediction. Open source software puts companies in a terrific position to re-brand and re-position themselves in a market that they may have not been able to reach before. In the business world, open source is all about image and when consumers witness corporations contributing (instead of selling) to the buying public, they gain big favor in the eyes of their users (plus tremendous opportunities to sell other items). Inviting the public inside a product's development builds community and trust. It also sets the platform for increased reliability. Fans of open source programs are adamant about reliable software and highly criticize commercialized versions for being buggy and error-prone. Avid fans even proclaim commercialism is the cause of shoddy software. Another benefit that open source brings to light is the speed at which its products are developed, enhanced, supported and distributed. This is because the people who regularly contribute to an open source product do so for unmotivated reasons (other than perhaps to feed the ego.) They're highly talented, they're available, and they care. Bringing money into any project can almost mean instant death. It can kill motivation, desire, and a true willingness to create a good product. In a commercial setting, participants work for a paycheck rather than for the product. And this is what puts open source projects far ahead of its monetized competition. As a software user, this means you can contribute to an open source project as well, and help to develop it into a product that reflects your direct preferences. You aren't "stuck" using open source software the way you would be stuck using an expensive word processor or database. You have the same access to open source software as its programmers have and in essence, you are your own customer! Perhaps at this point you're wondering where you can get in on this wonderful opportunity. There are plenty of open source opportunities sprinkled across the Internet and they can be easily found though any search engine. Google "open source project" and you'll be sure to find more resources than you can shake a stick at!

What is search engine gateway?

Navino launched its search engine gateway service recently. For most of the Internet surfers, search engine gateway is a pretty new concept compared with meta search engine or multi search engine. Put it in simple, it is a web service, which can let you search the best information from the best content providers in one website. When we try to find information everyday, most of us might go to Google.com. Yes, it's true. Most of the time, Google works well. But does Google return the best information? I guess you would agree that the search engine's ranking algorithm could only give a good answer, but not the best. Well, you may ask, where can I get the BEST? The best weather information? The best book information? The best price for your favorite mp3 player? The short answer is from the brain, from the hand picked information. Therefore, Navino's editors and their users give out that the best weather website is weather.com, the best book website is amazon.com and the best price information is froogle. Besides best hand picked information resources, Navino also provide the search engine gateway technology. Using this technology, you can search all the best website at Navino. All you need to do is to add a unique search name before your searching keywords. For example, if you want to search New York's weather, you can search with ‘weather New York' and you will be forwarded to weather.com with the keyword ‘New York'. If you want to search finance books, you can search with ‘book finance' and you will be forwarded to amazon.com with the keyword ‘finance'. If you want to search the best price for your favorite mp3 player, you can search with ‘price mp3 player' and you will be forwarded to froogle with the keyword ‘mp3 player'. Navino search engine gateway is very convenient for your everyday web surfing. Besides that, Navino also provides its users to customize their own search engine gateway and allows its users to recommend search names for public use.

Why use URL shorteners?

You must have seen them. Web addresses like http://tinyurl.com/2gj2z3 which, when you click on them, take you to another web page. Why use them? Are there any risks in using them? • An URL shortener is a web service that takes a long address that's hard to type, and turns it into a short one. You should use them in articles for print publication, classified ads, emails, blog and forum postings, anywhere there is a danger that the full address may be corrupted, or that someone may need to type the address into a browser manually. • But there is a danger in using short URLs that may make people afraid to use them. The short address disguises the real destination. This makes it easy for somebody to post an innocent looking message encouraging people to click on a link that takes them to a site which infects their computer with spyware, or something equally undesirable. • Some URL shortening services have tried to address this problem. The most well-known service, TinyURL.com, has an optional preview page that shows you the target address before you go there. But you have to know to type "preview" in front of the address, or visit the site and set it as a permanent option. Those who don't know about this are still vulnerable to deception. • A safe URL shortener would not allow the creation of links to undesirable sites. It would also always display a preview page, so the user always sees where the link is taking them before they go there. xaddr.com uses Internet blacklists to prevent its use to disguise sites that are advertised by spam. Its preview page offers a link to McAfee's Site Advisor, which can be used to check the safety of the destination. • Next time you need to write a long web address, use an URL shortener. But to encourage confidence that no harm will come from clicking the link, pick a safe one.

Wireless Lan And Laptop Computers

a small business run from home or on rented space, while it can be extremely profitable, cannot be furnished in the same style as a large-scale company office. Using standard full-size desktop computers in such a set up is impracticable, as it takes up too much space and is too bulky for cramped confines. To deal with such a situation, desknotes or transportables may just hold the key. Desknotes are systems that can be alternately used as a standard desktop PC, but also offers portability into the bargain. Desknotes have the same power levels as a desktop PC and occupy much less room. Moreover, to keep expenses to a minimum, it is possible to install a LAN amongst the desknotes, where only one laptop need be connected to the Internet and access is shared to all the laptops connected to the network. This is also true for the devices connected to the central laptop; through LAN, all the laptops can use the same device. Thus, for small offices with three or more laptops, LAN (Local Area Network) is surely a boon. LANs usually span a building or a small group of buildings. Connecting one LAN with many others through telephone lines and radio waves is called WAN (Wide Area Network). A Local Area Network that uses radio waves to communicate is called WLAN (Wireless Land Area Network). There are several advantages to WLANs. One is its flexibility. Radio waves can pass through walls of nearly any surface, and also do not require miles and miles of cables, thus offering a clutter-free work atmosphere. Wireless LAN can be almost invisible! Another advantage is that WLANs are extremely easy to use. Most laptops are built in with WLAN capability. So all you need to do is plug in and make sure you have a wireless LAN card. WLANs are very tough. If one base becomes disconnected, it is possible to use another laptop as a base and can be shifted physically into the range of another WLAN. Prices are very low these days for WLAN, and it is no wonder the choice for home networks. However, as nothing is perfect in this world, WLAN does carry a few disadvantages. Anyone can operate a laptop near a WLAN and hack into the stored wireless traffic. This makes safety an issue due to the loss of privacy. While radio waves can pass through almost any surface, too many obstacles in the path such as buildings can degrade the transmission. Another drawback is the data transfer speed. As many laptops share the same bandwidth, data transfer speeds are significantly lower in a WLAN. In addition to this, wireless data rates fall according to signal strength or interference. Wireless LAN is convenient where mobility is required, and is the only choice in old buildings where cables cannot be installed. Companies usually provide wired connections for fixed offices, and wireless LAN for those users who have no fixed location. In the end, WLAN should be installed only after taking into account all factors regarding your office or home set up.

Wireless Networks: How Do They Work?

Wireless networks use radio waves instead of wires to transmit data between computers. Here's how: The Binary Code: 1s and 0s It's well known that computers transmit information digitally, using binary code: ones and zeros. This translates well to radio waves, since those 1s and 0s can be represented by different kinds of beeps. These beeps are so fast that they're outside the hearing range of humans. Morse Code: Dots And Dashes It works like Morse code, which is a way to transmit the alphabet over radio waves using dots (short beeps) and dashes (long beeps). Morse code was used manually for years via telegraph to get information from 1 place to another very quickly. More importantly for this example, though, it is a binary system, just as a computer system is. Wireless networking, then, can be thought of as a Morse code for computers. You plug in a combined radio receiver and transmitter, and the computer is able to send out its equivalent of dots and dashes (bits, in computer-speak) to get your data from here to there. Wavelengths And Frequencies You might wonder how the computer can send and receive data at high speed without becoming garbled nonsense. The key to wireless networking is how it gets around this problem. First, wireless transmissions are sent at very high frequencies, which allows more data to be sent per second. Most wireless connections use a frequency of 2.4 gigahertz (2.4 billion cycles per second) -- a frequency similar to mobile phones and microwave ovens. However, this high frequency produces a wavelength that is very short, which is why wireless networking is effective only over short distances. Wireless networks also use a technique called "frequency hopping." They use dozens of frequencies, and constantly switch among them. This makes wireless networks more immune to interference from other radio signals than if they transmitted on a single frequency. Internet Access Points The final step for a wireless network is to provide internet access for every computer on the network. This is done by a special piece of wireless equipment called an access point. An access point is more expensive than a wireless card for 1 computer, because it contains radios capable of communicating with around 100 computers, sharing internet access among them. Dedicated access points are necessary only for larger networks. With only a few computers, it is possible to use 1 of them as the access point, or to use a wireless router. Industry Standards Wireless equipment from different manufacturers can work together to handle these complex communications because there are standards which guide the production of all wireless devices. These standards are technically called the 802.11. Because of industry compliance with these standards, wireless networking is both easy to use and affordable today. Wireless Is Simple To Use If all this talk of frequencies has you worried -- relax. Wireless networking hardware and software handle all of this automatically, without need for user intervention. Wireless networking, for all its complicated ability, is far simpler to use than you might expect.

What’s The Best Blogging Software For You And Your Business?

With blogs seemingly showing up all over the internet, many people want to jump on board as fast as they can. You may be one of those people. You may just want a way to polish your writing skills, or perhaps you even have thoughts of some day putting a little extra walking around money in your pocket. No matter what your reason, you likely want to know where it is you should start in your blogging. Well, first of all you are going to need some sort of blogging platform or software to create your blog in the first place. There are hundreds of options out there, so what you need to do is choose the blogging software that is best for you. Here are some tips on what to look for to get the best blogging software for you. First of all you have to make a decision on what the reason for your blogging is. Are you doing it to try and earn some extra money, to record your own daily reflections, to polish your writing style, or for some other reason? The reason you are doing it will have a lot to do with what you want to accomplish with the site. For instance, if you are doing it only for personal reasons, then you may just want to seek out the first free blog hosting website you can find that you like. On the other hand, if you are doing it to earn money you may be much pickier about what you want in terms of blogging software. You might want the blog on your own site, or on a site where they help you promote it. No matter what the reason ends up being, it is that which will most affect your choice of blogging software and which one is best for you. Secondly, once you know why you are blogging, you need to figure out exactly which features are going to be most important to you on your blog. Are you going to want to be able to post pictures? Or are you just going to be typing text as your content? You may also want to look at what tools are available like the ability to link, or to archive your posts. Once you know why you are blogging and what type of blogging you want to do you are that much closer to knowing what you need in blogging software. Keep in mind, though, that the more features that you are getting with your blogging software the more you will likely pay for that software. So, you must decide early on what you need and don’t need. Third, once you know why you want to blog and with what features you want to blog, it is time to start seeking out software. It is available all over the internet and even in computer stores now. You may first want to do a search because often times you can find web hosting and domain name registration software that will include blogging software applications with it. If you want to blog just to blog, then you may want to look at some of the free applications that allow you to just create a free account and then immediately begin blogging. On the other hand, if you want something on a website you have already established, and then look at software that may exist directly on your computer or through your hosting company. Much of it goes back to the first tip: know why you want to blog. Blogging is so popular now that many people feel like they are on the outside looking in if they don’t have their own blog. The problem is that you may not know how to get started in the world of blogging. Obviously you cannot have a good blog until you have figured out the blogging software you want to use. There are a few types out there including blogging platforms at websites, purchased packages, and some that even come with website hosting and allow you to include a blog on your website. No matter what type you use, you need to make some decisions to help you figure out which blogging software is for you. If you decide why you want to blog, what blogging features you want, and how much you want to spend on it, this will help in the decision making. Once you have done all of that it is just a matter of sifting through the various blogging software packages out there and deciding which fits your needs the most. The search for blogging software that is best for you will become obvious.

Computer Networking Fundamentals

A computer network is a collection of two or more computers with communication between them through a medium. The communication medium can be through radio waves, wires, infrared, optical fibers etc. Computer network is an integral part of our daily lives, with the most important reason being that of communication. The use of computer networking is to share resources like fax machines, printers, modems, files etc., and its other uses are database server, computer server, email, chat, internet etc. The computer to which the resources are attached is called the server and the other computers that access the resource are called clients. In peer-to-peer computer networks there are no servers. The sharing of fax machines, printers, and modems amongst many computers and users reduce the operational cost. A database on a computer network is a very important application as it stores and runs many important data and jobs. Emails and chats can be used for instantaneous communication and sending of files on a computer network. The computer networks are classified, depending upon the size, as Local Area Networks (LAN), Wide Area Networks (WAN), Metropolitan Area Networks (MAN) and Personal Area Networks (PAN). The topology (topology is the way the computer networks and network resources are connected) of the networking can be classified as Bus Network, Ring Network and Star Network. The networking hardware basically consists of wiring, network cards and a hub. Computer network cards are required so that one computer can understand what the other computer is “talking”. Network cards have a unique MAC address to identify computers on a computer network. Hubs connect all the computers in the network. Hubs can also be used to connect to other hubs to increase the size of the computer network. Two computers can be connected using Ethernet cards or phone lines or power lines for communication, with hardware kits available at roughly a cost of $100. As the number of computers in an office or a home increases, so do the number of cables, so wireless networking is a viable solution. In wireless networking radio transreceivers or infrared signals are used to communicate between computers and devices. Examples of wireless networking include Wi-fi and Bluetooth technology, though there may be security issues involved in wireless networking. However there definitely is a stronger preference towards wireless networking nowadays among consumers. Computer networks have added a new dimension to the 21st century. Today the cyber world is much faster and wider than the real world. This has all been made possible due to computer networks. Computer networks have revolutionized business, communication, travel, research, defense, society and almost all human endeavors. The evolution of computer networks has helped the technological revolution take a big leap forward.

There’s no mystery in the IP address!

The Computer is a very complicated device we use for our every day comfort and the importance of some of its numerical aspects is sometimes neglected. For example: a different number is given to each computer when its user goes online or when it is part of a network. This number is the IP address and knowing about it is like knowing where you live… What’s my IP and what do its numbers stand for? IP stands for Internet Protocol and the address is formed from 4 numbers separated by periods. The IP address format is a 32 bit numeric one and each number can be from 0 to 255. The IP address consists of two parts: first one represent the network number and it is similar for more than one user (like the number of a street) and second represents the host name which is different for each user (like the house number). To increase the number of available IP addresses within big networks with a lot of users or small networks with few hosts, the address is divided into 4 classes (A, B, C, and D) Having an IP address it’s like having a last name in a network. To identify a computer in a network (LAN-local area network, WAN-wide area network or on the Internet) it has to have an IP address. This number is similar to a phone number or to a zip code. It is unique and without it the device or computer can not be used in a network area. Within an isolated network the computers can be assigned different random IP addresses, but if a private network needs to be connected to the Internet the IP has to be registered so that its uniqueness is verified. Where do I find my IP address? Connect to a site that recognizes your IP address and let you see it also. You can visit this site for example: iprelated.com. These IP Lookup sites are very easy to use and very useful for others. An IP address can offer a lot information about the person who logs in on the Internet and engages in a certain activity. This is how illegal activity is sometimes detected and violations are reported. The IP address says less about the user if it is a dynamic one because it changes every time the user logs in. Another interesting aspect is that some people who have the information from your IP address are interested in taking you computer over and using its resources. This is not impossible! They can use software that enables them to do this so it is better to hide your IP when you are online. Who gives me my IP address? The IP address can be static or dynamic, meaning it can be the same every time you are online or it can change. The IP address is provided by a server through a service called DHCP (Dynamic Host Configuration Protocol) Although things can get pretty complicated when explaining numbers and their significance, this is just a small and easy to understand introduction about the IP address that does not involve technical terms. The importance of these details is very high because starting from these brief explanations one can truly comprehend the necessity and implications of the IP address and of virtual geo location.

Fiber Optics In The Real World

Optic fibers are used widely in the medical field for diagnosing and treating a variety of ailments. Because optic fibers can be made extremely thin and made into flexible strands, they can be used for insertion into blood vessels, lungs and other parts of the body. Optic fibers have been enabling physicians to look and work inside the body through tiny incisions with an instrument called an Endoscope. An Endoscope is a medical instrument made to carry two bundles of optic fibers inside one long tube. One bundle of optic fiber directs light at the tissue being examined, while the other bundle of optic fiber transmits light reflected from the tissue, producing a detailed image. Endoscopes may be designed to look into specific areas of the human body. For example, physicians can use the optic fibers in the Endoscope to examine knees, shoulders and other joints in the body. Arthroscopy (pronounced ahr-THROS-kuh-pee) is a technique of using another medical instrument called the Arthroscope. This instrument is straight and cylinder-like with a series of lenses and optic fiber bundles that come in sizes of 1/12 to 1/5 inch (2 to 5 millimeters.) The Arthroscope is used to examine a joint in a body, such as knee joints, ankles, elbows, hips and shoulders. This is done by the Arthroscope being inserted into a joint of the body through a small incision. A light is then transmitted by the use of the optic fibers to the tip of the Arthroscope to illuminate the joint. The use of optic fiber through the Arthroscope enables a physician to thoroughly examine a joint for diagnosis or treatment. Optic fibers used in the Arthroscope can be used to measure temperature and other bodily attributes as well as being used in performing surgical procedures. The problem most commonly treated by Arthroscopy is torn cartilage in the knee. This is when a small incision is made at the joint for use of the optic fiber in the Arthroscope and then a second incision is made for the use of other surgical instruments to remove the cartilage. The primary advantage of using optic fibers through Arthroscopic surgery is that the operation can be performed through a small incision, resulting in the patient experiencing the least amount of discomfort and a healing time that is much shorter, when compared to the other methods of surgery. Aside from the uses of the Endoscopes and the Arthroscopes, another widely used function of optic fibers in the medical field is the ability for the optical fibers to be inserted into blood vessels to give a quick and accurate analysis of blood chemistry. Physicians have also found medical use of the optical fibers to direct intense laser light at a wound to stop bleeding or to burn away abnormal tissue. Fiber optic training is necessary in the field of medicine. The use of optic fiber through medical science continues to grow rapidly to everyday to develop more new and advanced medical devices to enable physicians to provide people with better service.

What Is An Intranet? Definition and Uses...

An intranet is basically a private web based network. It uses all of the technology of the internet but is safe and protected behind a firewall that keeps unauthorized personnel out. Companies have been using them for years as a method of streamlining their internal communications. Because a web browser can run on any type of computer, the need to maintain multiple paper copies of documents that are constantly changing can be eliminated. Documents like training manuals, internal phone books, procedure manuals, benefits information, employee handbooks, requisition forms, etc. can be maintained as electronic documents and updated at almost no cost. The savings in paper and other material costs can be significant But the most powerful aspect of an intranet is its ability to display information in the same format to every computer being used. That allows all of the different software and databases a company uses to be available to all employees without any special equipment or software being installed on their systems. This universal availability of information is sparking an era of collaboration unlike anything ever seen before. The departmental barriers that exist in many companies are slowing breaking down because now colleagues can share information readily using the company intranet. Options for implementing an intranet There are a variety of options for setting up an intranet. They include building your own intranet technology, purchasing and installing third-party software, or purchasing access through an extranet ASP. Here is a quick summary of the advantages and disadvantages of each approach: 1. Building it yourself Advantages: Complete control of user interface design; ability to customize level of functionality; integration into internal systems, and direct access to user activity. Disadvantages: High up-front development cost; requires staff expertise in the development of extranets, commitment of internal staff for 6 months to a year for planning, execution, review and implementation; and an ongoing commitment of internal staff for internal and client support, hosting, maintenance and upgrades. 2. Purchasing/installing third-party software Advantages: Proven track-record of packaged solution; ability to choose functions and to customize user interface, more rapid implementation compared to building it yourself. Disadvantages: High up-front purchase cost; commitment of internal staff for customization and implementation; on-going commitment of internal staff for internal and client support, hosting, maintenance and upgrades; and extensive internal and client training 3. Using a Service Provider (ASP) Advantages: Proven track-record of the application; low cost of entry and predictable cost over time; virtually immediate implementation; no commitment of internal staff for internal support, hosting, or maintenance; and upgrades at no cost by extranet experts, and savings on internal server use. Disadvantages: Less freedom in user interface design, and fixed functionality. In the final analysis… The approach you choose depends on how you work, the technical and financial resources at your disposal, and how rapidly you need to move forward.

Will Firefox Win The Browser War?

For as long as you can remember the basic Internet browser was Internet Explorer. Of course, there was a moment in time when Netscape was trying to get that market share, but Internet Explorer won out and there are many people that don’t realize Internet Explorer is only their browser and they can change if they like. In fact, most folks believe Internet Explorer is the only option for reaching the Internet. However, this is not the case and there is a new kid on the block that is taking advantage of the security issues Internet Explorer has experienced and pulling a significant amount of market share in a short period of time. This newcomer web browser is Firefox. Firefox is a browser that focuses on opening web sites rapidly while keeping those nasty pop-ups and spyware at bay. Firefox was in its final stages last summer and fortunately for the up and coming browser two federal agencies recommended Internet surfers choose a different browser than Internet Explorer due to security issues IE was facing. This timing was perfect for Firefox and when it was placed on the web for download there were so many people trying to download at once the server almost could not handle all of the requests. However, Firefox came through and many web surfers switched from Internet Explorer. In fact, Internet Explorer held the market share for web browsers at 95.5%, but has slipped to 92.9% in just the few months Firefox has had its test version on the market. This might seem like just a few percentage points, but these percentage points represent millions of individuals who have switched from IE to Firefox. In fact, approximately 23 million preview copies of Firefox have been downloaded. So, what does this mean for IE and Firefox? Who will win this browser war? If Firefox continues gaining market share as it has then Firefox might come out on top. However, if IE works to fix its security problems it can probably hold onto its 90% plus market share. Only the future has the answer, we will just have to wait and see.