We often joke around the office about the "grandma" who refuses to use a computer until she can afford the "latest" one. Chances are, Grandma isn't ever going to shell out the bucks to buy the latest computer on the market, nor is she going to know how to use it once she gets it. What Grandma doesn't realize however is that a used computer is an excellent training tool that she can use to prepare herself for something "better" in the future. Apple's Macintosh computer was among the first of a couple systems to establish a user-to-hardware relationship through a user-friendly interface. Today, we have quite a few operating systems. Some of the more popular ones are Windows Vista, Mac OS X, ZETA, IBM, Unix, and Linux. But even still, operating systems have extended onto to non-computer devices such as game consoles, portable music players, and PDAs. Our client insisted that he should never need more than what came with his boxed product and that we were just trying "bilk" more money out of him. As computer consultants, it's our job and mission to make sure our clients are 100% satisfied when they walk out our offices. But our job is unnecessarily made harder when people don't take the time to learn about computer accessories and familiarize themselves with the limitations of store-bought computers. Decompressing Files Assuming that you have Winzip or StuffIt installed on your computer, you can access the files archived inside a .zip or .sit file by simply double-clicking the archive (a file ending in a .zip or .sit extension). Double-clicking one of these kinds of files will open up a window that displays the contents of the archive. And we strongly believe that spending just twenty minutes with one could turn the most adamant technological caveman into any one of those who have fun wreaking chatroom havoc on the Internet today. Today, one only needs to learn how to manipulate a mouse, punch a few buttons on a keyboard, or really just turn the thing on to use a computer. However they may be surprised to learn that programming increases computer knowledge as a whole and it can help to diminish the fear associated with using a new computer. Programming a computer is creating a sequence of instructions that enable the computer to do something.1 The people who program computers (called programmers) use a programming language to communicate with a computer.