Central+Processing+Unit+(CPU)

=Central Processing Unit (CPU)=

The Central Processing Unit or CPU is the most essential element of the computer. Without it, the computer would not function; thus, it is often called “the brain” of the computer. It is a small square-shaped chip which is connected to a socket located on the motherboard. On the underside of the chip are multiple metallic connectors or pins. Attached to the top of the CPU are the heat sink and fan to dissipate heat from the chip.

The CPU performs three main functions: 1. It receives input from sources such as keyboard, mouse, scanner, and modem. 2. It analyzes and processes data to become output. 3. It produces output such as what is seen on the monitor or printer.

The CPU is very expensive. The most well-known manufacturer of CPUs is the company Intel; for this reason, they are sometimes called “Intel chips.”

CPU speed today is measured in gigahertz (GHz). A CPU with a speed of 1GHz can run at one billion clock ticks per second. The larger the gigahertz number, the faster the computer.

For sources and more information see:

[|Wise Geek] [|Webopedia]

Miller, M. (2010). //Absolute Beginner's Guide to Computer Basics.// Fifth edition. Pearson Education.

Defined By: Suzanne Mathews
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