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

Imaging used what device to input data.?

Question # 2

Laser beam technology is used for

Question # 3

The mechanism for reading or writing data in a disk is called a(n).

Question # 4

Records stored on a Direct Access storage device.

Question # 5

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

Question # 6

If electrical power supply to a computer system is inadvertently disrupted ,the serious damage would occur to

Question # 7

A device that inputs data by scanning letters and numbers is a.

Question # 8

Microwave and Communication Satellite are example of

Question # 9

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

Question # 10

A magnetized spot represents.

Question # 11

Internal modem is connected to

Question # 12

A bar code reader is an example of a(n).

Question # 13

A device used for optical-character recognition is a.

Question # 14

Personal computer users may wish to increase their hard disk storage capacity with.

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 Soft copy refers to
A. OCR-A
B. screen output
C. microfiche
D. digitizing
2 Shift of 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
3 The equipment attached to CPU which computer can access are called
A. Hardware
B. input output devices
C. computer components
D. peripherals
4 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
5 Data is transmitted character by character in
A. Synchronous mode
B. Asynchronous mode
C. Remote communication
D. Satellite mode
6 A color screen with the best resolution
A. MICR
B. VGA
C. SVGA
D. LCD
7 Frequency is measured in
A. Channels
B. Hertz
C. Bandwidth
D. Baud
8 A device that inputs data by scanning letters and number is a
A. keyboard
B. wand reader
C. mouse
D. diskette
9 Which input device is often attached to laptop computers.
A. trackball
B. inscriber
C. graphics display
D. wand reader
10 A one color screen on a black background is called
A. monochrome
B. addressable
C. blank
D. lcd

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  • muhammad awais

    muhammad awais

    27 Oct 2018

    please find computer science mcqs

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