CPU - meaning and definition. What is CPU
Online Dictionary

What (who) is CPU - definition

Central Processing Unit; Cpu; CPUs; Processors; Central processing units; Personal computer Central Processing Unit; CPU (computer); Processor core; Master control processor; CPU bandwidth; Main processor; Computer processing chip; Central processor; Central processor unit; Central Processor Unit; Processor units; Central Processing unit; CPU; Logical processor; Instruction decoder; Discrete processor; Performance Counter Monitor; Performance counter monitor; Central-processing unit; VCPU; Virtual CPU
  • Block diagram of a basic uniprocessor-CPU computer. Black lines indicate data flow, whereas red lines indicate control flow; arrows indicate flow directions.
  • Symbolic representation of an ALU and its input and output signals
  • A six-bit word containing the binary encoded representation of decimal value 40. Most modern CPUs employ word sizes that are a power of two, for example 8, 16, 32 or 64 bits.
  • Fujitsu board with SPARC64 VIIIfx processors
  • [[EDVAC]], one of the first stored-program computers
  • Basic five-stage pipeline. In the best case scenario, this pipeline can sustain a completion rate of one instruction per clock cycle.
  • IBM PowerPC 604e processor
  • Inside of a laptop, with the CPU removed from socket
  • Model of a subscalar CPU, in which it takes fifteen clock cycles to complete three instructions
  • core memory]] and [[external bus]] interface of a DEC [[PDP-8]]/I, made of medium-scale integrated circuits
  • A simple superscalar pipeline. By fetching and dispatching two instructions at a time, a maximum of two instructions per clock cycle can be completed.

Central Processing Unit
In a computer, the CPU is the part that processes all the data and makes the computer work. CPU is an abbreviation for 'central processing unit'. (COMPUTING)


Central processing unit

A central processing unit (CPU), also called a central processor or main processor, is the most important processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations. This role contrasts with that of external components, such as main memory and I/O circuitry, and specialized coprocessors such as graphics processing units (GPUs).

The form, design, and implementation of CPUs have changed over time, but their fundamental operation remains almost unchanged. Principal components of a CPU include the arithmetic–logic unit (ALU) that performs arithmetic and logic operations, processor registers that supply operands to the ALU and store the results of ALU operations, and a control unit that orchestrates the fetching (from memory), decoding and execution (of instructions) by directing the coordinated operations of the ALU, registers and other components.

Most modern CPUs are implemented on integrated circuit (IC) microprocessors, with one or more CPUs on a single IC chip. Microprocessor chips with multiple CPUs are multi-core processors. The individual physical CPUs, processor cores, can also be multithreaded to create additional virtual or logical CPUs.

An IC that contains a CPU may also contain memory, peripheral interfaces, and other components of a computer; such integrated devices are variously called microcontrollers or systems on a chip (SoC).

Array processors or vector processors have multiple processors that operate in parallel, with no unit considered central. Virtual CPUs are an abstraction of dynamical aggregated computational resources.

Pronunciation examples for CPU
1. CPU?
Robot _ Christian Slater & Sam Esmail _ Talks at Google
2. My CPU is intact.
Terminator 3 - Rise of the Machines
3. 10, 15 CPU hours.
NASA Earth, Moon & Mars Exploration Maps _ Ross Beyer _ Talks at Google
4. We had one CPU designer.
A History of The ARM Microprocessor _ Dave Jaggar _ Talks at Google
5. or complete CPU design team.
A History of The ARM Microprocessor _ Dave Jaggar _ Talks at Google
Examples of use of CPU
1. We attribute the long battery life chiefly to the Compaq 2510p using an ultralow–voltage Intel CPU.
2. Since then, Apple has been content to issue minor periodic hardware upgrades, which, while not all that exciting, continue to add CPU horsepower while keeping prices steady.
3. On Friday, the police also raided the Jains’ shop and seized the CPU of one of the computers, among other items.
4. As for what‘s inside this slim laptop, we‘re looking at a 1.6GHz or 1.8GHz Intel Core 2 Duo CPU, custom–made by Intel to fit into the slim chassis, 2GB of RAM, and a choice of either an 80GB standard 1.8–inch hard drive or a 64GB SSD drive (which really should be standard for something so forward–looking). Moving up to the SSD drive and faster CPU drives the price up from $1,7'' to a whopping $3,0'8.
5. The cheaper $1,''' version (called the X205–SLi1) includes these extras, but drops the screen resolution to 1,440x'00, the hard drive from 320GB to 240GB, and the CPU from an Intel Core 2 Duo T7500 to a slower T7250.