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central processing unit

noun, Computers.
1.
CPU.
Also called central processor.
Origin
1965-1970
1965-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for central processing unit
  • Digital codes can be output to identify the type of vehicle detected or report detection faults to a central processing unit.
British Dictionary definitions for central processing unit

central processing unit

noun
1.
the part of a computer that performs logical and arithmetical operations on the data as specified in the instructions CPU
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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central processing unit in Science
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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central processing unit in Technology
architecture, processor
(CPU, processor) The part of a computer which controls all the other parts. Designs vary widely but the CPU generally consists of the control unit, the arithmetic and logic unit (ALU), registers, temporary buffers and various other logic.
The control unit fetches instructions from memory and decodes them to produce signals which control the other parts of the computer. These signals cause it to transfer data between memory and ALU or to activate peripherals to perform input or output.
Various types of memory, including cache, RAM and ROM, are often considered to be part of the CPU, particularly in modern microprocessors where a single integrated circuit may contain one or more processors as well as any or all of the above types of memory. The CPU, and any of these components that are in separate chips, are usually all located on the same printed circuit board, known as the motherboard. This in turn is located in the system unit (sometimes incorrectly referred to as the "CPU").
A parallel computer has several CPUs which may share other resources such as memory and peripherals.
The term "processor" has to some extent replaced "CPU", though RAM and ROM are not logically part of the processor.
List of processors (http://lldn.timesys.com/complete_list_of_processors).
(2007-04-02)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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