Which one of the following measures the speed of the CPU ?

It contains some different commands and instructions in the form of menus, graphics , tool bars and the basic input unit is the mouse that makes computer more interesting.

a set of programs responsible for managing the Hardware moreover, it is considered a means between the user and his programs on one hand and the Hardware on the other hand.

It is an electronic set which has the ability to store data and process them to reach certain results {information} by doing logical and mathematical processes

Touch screen is an ……………unit

......................... can contain files and sub folders.

One of the most famous operating systems and more common for personal computer.

is responsible for doing any logical and mathematical processes which lead to data Processing according to the orders and instructions of the different programs.

To convert from byte to bit

Programs that we can't see its source code , it is available only for programmers & designers or the company that own this programs , it is not free programs , we can't use it without license .

Set of commands that tells computer what to do , translate between users and computer .

Programs that we can see its source code and we can edit and develop it , it is free programs ,all users can use it without license like Libra Office, Gimp , Open shot .