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Basics of Computer

Total questions: 25

Worksheet time: 10mins

Name
Class
Date
1.

Which of the following groups are only input devices?

a)

Mouse, keyboard, monitor, Joystick

b)

Mouse, keyboard, printer, Light pen

c)

Mouse, keyboard, Joystick, Light pen

d)

Mouse, keyboard, Monitor Light pen

2.

Which of the following is not a pointing device?

a)

Mouse

b)

Joystick

c)

Light pen

d)

Digitizer

3.

Wireless mouse communicates through

a)

radiowaves

b)

infrared wave

c)

microwaves

d)

Electromagnetic signal

4.

The OCR stands for

a)

Outsized Character Reader

b)

Optical Character Reader

c)

Operational Character Reader

d)

Only Character Reader

5.

Which electronic components are used in First Generation Computers?

a)

Transistors

b)

Integrated Circuits

c)

Vacuum Tubes

d)

VLSI Microprocessor

6.

Which electronic components are used in Third Generation Computers?

a)

Transistors

b)

Integrated Circuits

c)

Vacuum Tubes

d)

VLSI Microprocessor

7.

The binary number 11101 is equal to the decimal number

a)

27

b)

28

c)

29

d)

30

8.

Octal equivalent of Binary Number (110111) is

a)

67

b)

65

c)

68

d)

66

9.

Octal equivalent of decimal number (56) is

a)

69

b)

70

c)

71

d)

72

10.

What type of printers are Dot Matrix Printers?

a)

Laser

b)

Inkjet

c)

Impact

d)

Drum

11.

The difference between impact and nonimpact printers

a)

Impact printers are faster than non- impact printers

b)

Impact printers make direct physical contact with paper,non impact don't

c)

Impact printers produce better quality prints

d)

None of the Above

12.

CRT Stands for

a)

Cathode radiation Tube

b)

Crystal Ray Tube

c)

Cathode Ray Tube

d)

Cathode Ring Tube

13.

LCD stands for

a)

Liquid Crystal Display

b)

Liquid Cathode Display

c)

Large Crystal Display

d)

Liquid Crisp Display

14.

Height to width ratio of Monitor Screen is called

a)

Width Ratio

b)

Aspect Ratio

c)

Height Ratio

d)

Length Ratio

15.

Which of the following has fastest Access Time

a)

Harddisk

b)

Pendrive

c)

Cache

d)

RAM

16.

The process of dividing the disk into tracks and sectors is called

a)

Tracking

b)

Allotting

c)

Crashing

d)

Formatting

17.

The storage device that uses rigid, permanently installed magnetic disks to store data is

a)

1. Floppy

b)

2. Permanent disk

c)

3. Optical disk

d)

4. Hard disk

18.

A DVD is

a)

1. Optical disk

b)

2. Output device

c)

3. Solid state storage device

d)

4. Hard disk

19.

The Boot sector files of the system are stored in which computer memory?

a)

(a) RAM

b)

(b) ROM

c)

(c) Cache

d)

(d) Register

20.

RAM is and _.

a)

(a) volatile, temporary

b)

(b) non-volatile, temporary

c)

(c) volatile, permanent

d)

(d) non-volatile, permanent

21.

Which of the following has the fastest speed in the computer memory hierarchy?

a)

(a) Cache

b)

(b) Register in CPU

c)

(c) Main memory

d)

(d) Disk cache

22.

The value of radix in binary number system is _____________

a)

8

b)

2

c)

1

d)

0

23.

The binary equivalent of the decimal number 10 is __________

a)

1010

b)

1100

c)

1001

d)

1110

24.

Which of the following is not a binary number?

a)

111

b)

110

c)

112

d)

101

25.

Which of the following is not an octal number?

a)

776

b)

567

c)

787

d)

456