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. The data that a program receives is called input and data that the program generates is called output. Other times, the data is unknown. If the program were working with a simple algebra equation like, "x + 5 = y," the variables "x" and "y" would be unknown pieces of data. The easiest and cheapest method uses an Ethernet connection, which requires a series of network cards, a cable for each computer, and a router. The network card is similar to the old modems we used in the past to connect to the Internet, however in a home network, it's used to communicate with every computer that's connected to it. Assuming that a computer is set up to operate on touch command - the answer is again, yes! Touch command software allows users to literally touch objects on a monitor and tell the computer what to do with a finger. Known as "kiosks," these programs are already in use world wide at ATM machines, employment centers, and in health monitoring systems. " Although these two activities are important, there's more you can do to extend the life of your computer beyond today's predicted two-year span. In fact, by following the simple advice below, you can enjoy the use of your computer to up to five years or more - reserving expenses to simple software upgrades rather then complete and costly hardware upgrades. Siting next to your child while he or she peruses the Internet, you can guide him or her to make safe and intelligent decisions. You can approve websites and bookmark them together. You can monitor the conversations your children have with their friends and teach them appropriate online behavior at the same time.