CPU

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CPU

(computer science)

CPU

CPU

(Central Processing Unit) The computing part of the computer. Also called the "processor," it is made up of the control unit and ALU. Today, the CPUs of almost all computers are contained on a single microprocessor chip. In fact, multiple processing units on one chip are commonplace (see multicore). See microprocessor, control unit and ALU.

Computer Vs. Computer System
Technically, the CPU, clock and main memory make up a computer. A complete computer system requires the addition of peripheral control units, input, output and storage devices and an operating system. In practice, the terms "computer" and "computer system" are synonymous.

From the Old Mainframer's Viewpoint
Years ago, computer professionals involved with mainframes referred to the whole computer as the CPU, in which case, CPU referred to the processor, memory (RAM) and input/output channels.


Central Processing Units
Years ago, a CPU was the processor, memory and everything inside the cabinet. Today, a CPU is generally nothing more than a microprocessor.
References in periodicals archive ?
all of which have made NAS the preferred solution for any network storage environment that does not rely upon high-performance or high-scalability, yet traditional NAS implementations fail to scale because they are bound by the CPU cycles their host system can produce.
Fujitsu's PRIMEPOWER 900 recently captured the highest rating on operations per CPU among all the UNIX(R) categories in SPECjbb testing.
Static electricity can render a perfectly good CPU worthless.
HyperTransport technology is natively embedded in multiple CPU families from AMD, Broadcom, IBM, NetLogic Microsystems, PMC-Sierra, Raza Microelectronics and Transmeta and in a variety of semiconductors and IP cores.
Although most companies are not taking advantage of virtual server expansion and contraction capabilities today, it is possible to "borrow" CPU and/or memory capacity from other servers, which are currently not being "taxed", and then return that same CPU and/or memory capacity back to their original "owners"--in their original state.
ISA slots communicate with your CPU at 8 MHz and PCI slots communicate with your CPU at 33 MHz.
Even if a disk could sustain its advertised access time, it's hardly the "multiple order of magnitude" jump in performance we've seen with CPUs.
The afternoon will feature three parallel presentation tracks that detail software development tools, EDA design flows, CPU IP, libraries and multimedia SoCs incorporating configurable devices.
As devices are added, the CPU must wait on data, decreasing effective bandwidth.
Increasingly, ARC's CPU/DSP cores are winning against products from fixed architecture and other configurable CPU vendors.
In addition, a reliance on soft-translation opens up a world of finger pointing, as developers will inevitably find that their applications are in some way less optimized for Crusoe than for standard x86-based CPUs.