ECAT Pre Computer Science MCQ Test For Computer Chapter 3 With Answer

MCQ's Test For ECAT Computer Science Chapter 3 The Peripheral Devices

Try The MCQ's Test For ECAT Computer Science Chapter 3 The Peripheral Devices

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ECAT Computer Science Chapter 3 The Peripheral Devices

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Question # 1

The cursor can be moved rolling this device on a flat surface.

Question # 2

Shift of a register by one bit to left in binary code is equivalent to.

Question # 3

A device used for optical-character recognition is a.

Question # 4

To most commonly used output device today is a.

Question # 5

A device that inputs data by scanning letters and number is a

Question # 6

A device used for optical character recognition is

Question # 7

The speed at which a disk can find data being bought is called

Question # 8

The ability to return a change disk record to its original location is called

Question # 9

In a computer system,which of the following has largest number of mechanical components and thus most unreliable :

Question # 10

Assigning more sector to outer hard disk is called

Question # 11

The cursor can be moved rolling this devices on a flat surface:

Question # 12

The transfer of data from one place to another is called

Question # 13

The speed with which a disk can find data being bought is called.

Question # 14

The disk storage that uses both a magnet and laser beam.

Question # 15

A hard disk can be backed up efficiently using.

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ECAT Computer Sciences Chapter 3 Important MCQ's

Sr.# Question Answer
1 Communication between a computer and keyboard involes __________ transmission.
A. Half duplex
B. Full-duplex
C. Simplex
D. Automatic
2 If electrical power supply to a computer system is inadvertently disrupted ,the serious damage would occur to
A. CPU
B. disk
C. CRT
D. printer
3 Internal modem is connected to
A. DCE cable
B. RJ 45 cable
C. RS 232 serial port
D. DTE cable
4 Shift of a register by one bit to left in binary code is equivalent to.
A. addition of 2
B. subtraction of 2
C. division by 2
D. multiplication by 2
5 If electrical power supply to a computer system is inadvertently disrupted, the serious damage would occur to.
A. CPU
B. disk
C. CRT
D. printer
6 The time required for the access arm to get into position over a particular track is
A. rotational delay
B. data transfer
C. seek time
D. head switching
7 A bar code reader is an example of a(n).
A. processing device
B. storage device
C. Input device
D. output device
8 The mechanism for reading or writing data in a disk is called
A. track
B. access arm
C. seek time
D. rorational delay
9 Following devices are used in simplex mode
A. Radio
B. Television
C. a , b
D. Multiplexers
10 A digital computer system consists of a central processing unit (CPU) interfaced with.
A. input devices
B. auxilary storage
C. output devices
D. all of the above

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  • muhammad awais

    muhammad awais

    27 Oct 2018

    please find computer science mcqs

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