How a Computer Works

by Amelia Medley

Inputs and Outputs

Input devices allow you to put raw information into a computer and they come out as outputs when they have been processed, then we can understand it.

Touch Screen

A touch screen is a input device that allow people to press the screen with their fingers or a stylus to control their device instead of using a button or a mouse. Touch screens are most commonly found in smart phones, game consoles, tablets or ipads, and personal computers.


RAM stands for:




RAM is a form of computer data storage that can be accessed randomly. RAM is the most common data storage found in computers and other devices such as printers.


CPU stands for:




The CPU is the part of a computer system that is commonly referred to as the "brains" of a computer. The CPU is also known as the processor or microprocessor. The CPU is responsible for executing a sequence of stored instructions called a program.


Monitors are display devices external to the computer case and connect via a cable to a port on the video card or motherboard.

Even though the monitor sits outside the main computer housing, it is an essential part of the complete system.

Monitors come in two major types - LDC or CRT


A motherboard is the main printed circuit board found in general purpose microcomputers and other expandable systems. It holds and allows communication between many of the crucial electronic components of a system, such as the central processing unit and memory, and provides connectors for other peripherals.