Central+Processing+Unit+(CPU)

[|CPU is an acronym for Central Processing Unit]. The CPU is the brains of the [|computer]. Sometimes referred to simply as the [|//processor//] or //central http://www.webopedia.com/TERM/C/CPU.html#|processor,// the CPU is where most calculations take place. In terms of computing power, the CPU is the most important element of a [|computer system]. On large machines, CPUs require one or more [|printed circuit boards]. On [|personal computers] and small [|workstations], the CPU is housed in a single [|chip] called a [|//microprocessor//]. Two typical components of a CPU are:// Also see [|All About Dual-Core Processors] in Webopedia's "[|Did You Know...?]" section.//
 * The [|//arithmetic logic unit//] (ALU)//, which performs arithmetic and logical operations.//
 * The [|control unit] (CU)//, which extracts [|instructions] from [|memory] and decodes and [|executes] them, calling on the ALU when necessary.//

Parts of the computer
 * Keyboard