|central processing unit|
|CPU the part of a computer that performs logical and arithmetical operations on the data as specified in the instructions|
|central processing unit
The part of a computer that interprets and carries out instructions provided by the software. It tests and manipulates data, and transfers information to and from other components, such as the working memory, disk drive, monitor, and keyboard. The central processing units of personal computers are generally implemented on a single chip, called a microprocessor.