Operating System
O/S

This is the central part of the computer that manages the system's hardware, provides an operating environment for applications, and provides a user interface, such as Windows^® XP, Mac OS^®, or Linux.

The O/S most commonly found on today's computers is Windows^® XP or Windows^® Vista. For most users, Windows^® XP provides a very stable environment, has many features, and is inexpensive. Windows^® Vista is newer, has more features, is somewhat more secure, but is not compatible with much hardware and software that is not as new as Vista, and is expensive.

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