central processing unit: the key component of a computer system, which contains the circuitry necessary to interpret and execute program instructions. Also called central processor, microprocessor.

* * *

Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit.

The CPU is linked to main memory, peripheral equipment (including input/output devices), and storage units. The control unit integrates computer operations. It selects instructions from the main memory in proper sequence and sends them to the instruction-decoding unit, which interprets them so as to activate functions of the system at appropriate moments. Input data are transferred via the main memory to the arithmetic-logic unit for processing (i.e., addition, subtraction, multiplication, division, and certain logic operations). Larger computers may have two or more CPUs, in which case they are simply called "processors" because each is no longer a "central" unit. See also multiprocessing.

* * *

Universalium. 2010.

Look at other dictionaries:

  • CPU — CPU …   Deutsch Wörterbuch

  • CPU-Z — Entwickler CPUID Aktuelle Version 1.58 (24. Juni 2011) Betriebssystem Windows Kategorie Systemprogramm Lizenz …   Deutsch Wikipedia

  • CPU-Z — 1.54 в среде …   Википедия

  • CPU — CPU, cpu c.p.u. . abbr. 1. (Computers) The {central processing unit}, that part of the electronic circuitry of a computer in which the arithmetic and logical operations are performed on input data, which are thereby converted to output data; it… …   The Collaborative International Dictionary of English

  • CPU-Z — 1.55 with overclocked processor under Windows 7 beta Developer(s) CPUID Stable release 1.58 / June 24, 2011; 4 months ago …   Wikipedia

  • CPU — (el. cpu) sb., CPU’en, CPU’er, CPU’erne (IT processor), i sms. CPU , fx CPU blæser …   Dansk ordbog

  • CPU — COMPUTING abbreviation for central processing unit * * * CPU UK US /ˌsiːpiːˈjuː/ noun [C] ► IT ABBREVIATION for central processing unit: the part of a computer that controls all the other parts: »The motherboard and CPU are the brains of your PC …   Financial and business terms

  • CPU — [sē′pē′yo͞o′] n. central processing unit: also cpu …   English World dictionary

  • CPU — Abreviatura de complejo prematuro de la unión. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 …   Diccionario médico

  • CPU — sigla ES ingl. Central Processing Unit, unità centrale di elaborazione, il processore di un calcolatore elettronico …   Dizionario italiano

  • CPU — 〈engl. [si:pi:ju:] EDV; Abk. für engl.〉 Central Processing Unit (zentrale Verarbeitungseinheit) eines Computers, übernimmt die Ablaufsteuerung der Zentraleinheit …   Lexikalische Deutsches Wörterbuch

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.