User:Esraa Elsayed Hassan/sandbox

== Computers == computers are devices that are used to carry out tasks that people want to done in a more efficient and usually faster way than can be done by the human brain.Computers enable us to restore much information[] that can not be stored otherwise. This matter greatly helps save time and effort.

There are two types of computers, analog and digital .Analog are devices that require human operation like the tide predicting machine made by sir William Thompson,and digital is like a personal computer,which uses a series of codes and programs to calculate data.