But in an environment where there are five, ten, twenty or more computers, buying a license for each computer can be down-right costly. So costly that the temptation to pirate a little software here and there can be pretty tempting. Co-workers are familiar with this temptation and they're often the ones who "share" purchased software among those who need it. Apparently, the Windows XP operating system requires components that weren't developed at the time Windows 98 was distributed and if we were to install Windows XP on this machine anyway, the new operating system would look for hardware that the computer didn't have. And that would be an instant recipe for failure. This article looks at compressed files a little closer and it describes how to compress and decompress them using two of the most popular archiving programs. Identifying Compressed Files Most files are compressed in .zip format (if you're using Windows) or .sit format (if you're using a Mac). The two most popular software programs used to compress and decompress files are Winzip and StuffIt respectively. 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! We're going to predict that chips will replace everything that was once transported from one location to another through the trusty post office. And we're going to predict that homes will become less cluttered with stacks of paper and that our natural resources will flourish as a result of it. This all sounds fine and dandy of course, but if you're not computer savvy, you're going to feel a little lost once the choice has past and the revolution is 100% complete. " Button - buttons perform a command after a user clicks them with a mouse. Problems occur when the text of a button is grayed out or if it doesn't appear to sink into the screen when clicked. Check box - a check box is a small box that allows a user to indicate several choices among many. When clicked, a small "x" displays inside a box.