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. 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. Today's users require full multimedia capabilities, a wide range of graphics tools, and accommodations for the various portables we now enjoy. These extras aren't included with "what comes out of the box," and the only way to get them is to accessorize. To illustrate the importance of accessorizing, we like to use the "plain dough" analogy. 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. "1 In the past, we would be comfortable in telling new computer users not to worry about viruses and that catching a computer virus is rare. Today, that would be some of the worst advice we could give anyone. As reported in countless news reports, computer viruses are rampant and they're extremely worrisome. However the same temptation also prompts others to knowingly or unknowingly buy bootleg copies of commercial software or registered shareware. As tempting as it is, it's still illegal and the punishments/fines for sharing commercial or registered software is too much for one to bear. In recent news, "Yahoo China loses music piracy case (AP via Yahoo!