परखे अपनी तैयारी JOA(IT)

Top 20 questions from computer system for JOA(IT)

1 The first electronic computer used …………..as switches.

Ans. vaccum tubes.

2 Control unit is also called …………. of computer.

Ans. nerve

3 Cpu consist of ……….and …….. units.

Ans Alu and cu

4 Transistors was invented in …….

Ans 1946

5 The concept of stored program was given by ……

Ans John Von Neuman.

6 Transistors was introduced in ……….. generation.

Ans. 2nd

7 EDVAC ENIVAC MARK I belongs to …………. generations.

Ans. first.

8 Device that holds disc is called ……

Ans disc drive.

9 Base 2 is anothe name for ……..

Ans. Binary number system

10 A nibble is a  string of ……. bits

Ans 4

11 A computer consist of millions of tiny of small switches called ……..

Ans transistors

12 Ic’s came into existance during ……….. generation.

Ans 3rd

13 MICR stands for

Ans Magnetic Ink Character Recognition

14 UPC stands for

Ans . Universal product code.

15 Light pen is used as ………. device

Ans input

16 Abacus was invented in

Ans China

17 ………….is used during 2nd world war

Ans MARK-1

18 5th generation is ……….. based.

Ans AI

19 IBM is also known as

Ans Blue whale

20 Father of modern computer….

Ans Allen Turing