What is Computer💻

Computer :   Computer is an electronic     equipment which is used to store  and   retrieve data. The word   "Computer" Comes from the word compute which 

Means to calculate.

 Parts of Computer: 

      1.Monitor 

          A monitor is an output device which is used to displays information in text or pictorial form. It is also known as VDU( Video Display Unit). 

Types of Monitor

    1.CRT.( Cathode ray tube) . 

    2.LED.(Light emitting diodes) . 

    3.LCD. ( Liquid crystal display) . 

    2.Keyboard:

     Keyboard is an input device. There are 108 keys on the keyboard   which includes  alphabets,  numbers,   Functional keys(F1 to F12) , Control keys , Numeric keypad etc. 

 How keyboard connects to a CPU? 

Keyboard can connect With a Computer

Through a cable or a signal( wireless connection) . 

3.Mouse

 

 

                          Mouse is a pointing input device of computer. It was invented by 

Douglas Engelbart in 1968.

What are the uses of Mouse? 

1.Move the mouse cursor. 

2.Open a program. 

3.Drag and drop. 

4.Select.