L-3 & L-4 / Class 2 Test 's Answer

 

Class – 2^nd

Subject – Computer

Revision – 2

(L-3  Operating a Computer & L-4 Processing of computer)

Fill in the blanks

1) The desktop hold many small pictures known as icons  .

2) When we enter data into the computer , is called   input .

3) The thin bar at the bottom of the desktop is called   taskbar .

4) Keyboard   and   mouse  are the most common input devices.

5) The  start  button is at the bottom left side of the taskbar.

6)  Working on data is called  processing  .

7)  When we switch on the computer the first display screen is called  desktop .

8)  Output   means final result, when the processing is finished we get result.

9) Window    is collection of program known as an operating system.

10) Monitor  and  printer  are the most common output devices.