Central processing unit; the brain of the computer; controls the other elements of the computer

A peripheral device that reads and/or writes information on a disk

A device (usually within the computer case) that reads and writes information, including the operating system, program files, and data files

A peripheral device used to connect one computer to another over a phone line

Complete, self-contained programs that perform a specific function (ie. spreadsheets, databases)

A program used to view World Wide Web pages, such as Netscape Navigator or Internet Explorer

A part of a program that usually causes the computer to malfunction; often remedied in patches or updates to the program

Transferring data from another computer to your computer

Allows the user to control which portion of the document is visible in the window; available either horizontally or vertically or both

Uniform resource locator; the address of a site on the World Wide Web; a standard way of locating objects on the Internet