Online Test

Question # 1

CD-ROM has the same format as a(n).

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backup tape

DAT

diskette

audio compact disk

Laser beam technology is used for.

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terminals

optical disk

keyboards

magnetic tape

Data is transmitted character by character in

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Synchronous mode

Asynchronous mode

Remote communication

Satellite mode

A one-color screen on a black background is called.

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monochrome

addressable

blank

liquid crystal display

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

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addition of 2

subtraction of 2

division by 2

multiplication by 2

The mechanism for reading or writing data in a disk is called

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track

rorational delay

access arm

seek time

To most commonly used output device today is a.

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CRT monitor

keyboard

mouse

card punch

Which input device is often attached to laptop computers.

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trackball

inscriber

graphics display

wand reader

A pictorial screen symbol that represent a computer activity is called

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pointer

touch screen

icon

miicr

A color screen with the best resolution has the most.

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CRT

VGA

COM

pixel

Coaxial and fiber cables are examples of media

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Guided

Router

Un-guided

Simplex

Which input device is often attached to laptop computers:

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trackball

inscriber

wand reader

graphic display

The most commonly used output devices in a computer system are

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printers and monitors

disk drives and printers

disk drive and tape drives

tape drive and keyboards

The major disadvantage of magnetic tapes is.

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cost

unreliability of store data

slow data recording

data is to be accessed sequentially

A digital computer system consists of a central processing unit interfaced with

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input devices

auxiliary storage

output devices

all of above

DASD refers to

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disk storage

track

tape storage

sorting

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