Even though you may use Windows XP or Vista, batch files can save you tons of time by automatically starting multiple programs and performing different tasks at the single click of a button. They don't require any extensive programming background and they don't need to be encrypted with some weird, expensive compiler. Today's "older" computers are perfectly capable of accommodating the needs of young PC users, and they're excellent machines for playing educational CDs, small multimedia files, or games downloaded from the Internet. And don't forget the most important role they play in a child's homework-clad life: A simple encyclopedia CD on a used computer makes excellent research tool (not to mention a rather fancy calculator! Windows should walk you through setting up a LAN after starting the computer and once complete, you can begin to connect one of your machines to the network. You can do this through Internet Explorer by typing in the address and password required to access the router (the address and password required to access the router will be in the router manual). For fun, let's investigate just how little knowledge these thousand-dollar machines actually require. Can an absolute newbie operate a computer without knowing how to use a mouse or keyboard? Assuming that a computer is set up to operate on voice command - sure! Voice command software allows users to tell a computer what to do and the computer responds by fulfilling the user's commands. 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. 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.