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. 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. New computer users are typically interested in learning more about how the thing works. 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. It may contain squares, boxes, words, icons, and buttons. If you're experiencing insufficient memory for example, you might see black rectangles across the user interface of your software programs. Title bar - this is the top-most part of a program that displays its own name or it may describe the contents displayed in another part of the 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. 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.