The Inside Of A Computer

By Kirsty Chard


A CPU (or "central processing unit" as it is technically referred to) is a small piece of electronic equipment that is designed to operate other pieces of electronic equipment. Essentially, it is a small circuit that carries out basic instructions that tell whatever it is inside of how to operate. For example, in a computer the CPU's job is to load the operating system, which is the piece of software that allows you to do things like access the Internet and write Word Documents.


Random Access Memory, or volatile memory, is used by the system to store data for processing by a computer's central processing unit (CPU), also known as the processor. RAM stores the data in memory cells that are arranged in grids much like the cells are arranged in a spread sheet, from which data, in the binary form of 1's and 0's, can be accessed and transferred at random to the processor for processing by the system's software.


HDD stands for Hard Disk Drive. It is a drive found in computers, some mobile phones, cameras, video game consoles, and some camcorders. The drive is used to store data that has been converted into digital format.


Network Interface Controller, electronic hardware designed to allow computer hardware components to communicate over a computer network (i.e. a Network Interface Card or Ethernet Adapter).