Central processing unit – the computer’s primary processing device, which interprets and executes program instructions and manages the functions of input, output and storage devices. In personal computers, the CPU is composed of a control unit, an arithmetic logic unit, built memory and supporting circuitry such as a dedicated math processor. The CPU may reside on a single chip on the computer’s motherboard or on a larger card inserted into a special slot on the motherboard. In larger computers, the CPU may reside on several circuit boards.

Answered by Nishu%27s , an ibibo Master, at 5:37 PM on November 27, 2008

Central Processing Unit,This is the pretty much the brain of your computer. It processes everything from basic instructions to complex functions. Any time something needs to be computed, it gets sent to the CPU.The CPU can also be referred to simply as the "processor."

Answered by Shishir , an ibibo Master, at 9:49 AM on November 27, 2008

A Central Processing Unit (CPU) is a machine that can execute computer programs. This broad definition can easily be applied to many early computers that existed long before the term "CPU" ever came into widespread usage. The term itself and its initialism have been in use in the computer industry at least since the early 1960s (Weik 1961). The form, design and implementation of CPUs have changed dramatically since the earliest examples, but their fundamental operation has remained much the same.

http://en.wikipedia.o rg/wiki/Central_processing_uni t

Answered by arun nair , an ibibo Citizen, at 12:17 AM on November 27, 2008