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

A color screen with the best resolution

Question # 2

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

Question # 3

A device used for optical character recognition is

Question # 4

The encoding scheme of data represent as

Question # 5

The major disadvantage of magnetic tape is

Question # 6

The disk storage that use both magnet and laser beam

Question # 7

The time required for the access arm to get into position over a particular track is

Question # 8

Assigning more sector to outer hard disk is called

Question # 9

Which of the following cable is comprised of two separate insulated copper wires that are twisted?

Question # 10

Word is 16 bits is

Question # 11

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

Question # 12

The most common storage devices in a computer system are.

Question # 13

Imaging used what devices to input data?

Question # 14

A disk pack within a selected data module is a

Question # 15

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

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ECAT Computer Sciences Chapter 3 Important MCQ's

Sr.# Question Answer
1 The voice channel has a bandwidth of
A. 0 - 2 KHz
B. 0 - 4 KHz
C. 5 - 10 KHz
D. 10 - 20 KHz
2 The cursor can be moved rolling this device on a flat surface.
A. mouse
B. wand reader
C. trackball
D. interactive tablet
3 Voice input devices convert voice input to.
A. digital code
B. OCR-A
C. bar codes
D. optical marks
4 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
5 To most commonly used output device today is a.
A. CRT monitor
B. keyboard
C. mouse
D. card punch
6 Personal computer user may wish to increase their hard disk storage capacity with
A. higher density
B. DAT
C. read only media
D. removable hard disk cartridge.
7 A one color screen on a black background is called
A. monochrome
B. addressable
C. blank
D. lcd
8 In a computer system, which of the following has largest number of mechanical components and thus most unreliable.
A. magnetic tape
B. magnetic drum
C. floppy disk
D. printer
9 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
10 A magnetized spot represents
A. cpi
B. MB
C. 0 bit
D. 1 bit

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  • muhammad awais

    muhammad awais

    27 Oct 2018

    please find computer science mcqs

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