Online Test

Question # 1

A one color screen on a black background is called

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monochrome

addressable

blank

lcd

Computer output produced as small film images is called.

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OCR

COM

LCD

OMR

The voice channel has a bandwidth of

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0 - 2 KHz

0 - 4 KHz

5 - 10 KHz

10 - 20 KHz

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

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mouse

wand reader

trackball

interactive tablet

Coaxial and fiber cables are examples of media

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Guided

Router

Un-guided

Simplex

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

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monochrome

addressable

blank

liquid crystal display

Computer output produced as small film images is called

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OCR

COM

LCD

OMR

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

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track

rorational delay

access arm

seek time

Soft copy refers to.

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OCR-A

screen output

microfiche

digitizing

Which of the following does not represent an I/O devices?

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speaker

OCR

Joystick

ALU

All of the following are Guided Communication media except

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Fiber-Optic Cable

Wire Cable

Coaxial Cable

Satellite-based , Microwave communication

Data transmission speed of wire pair is

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9600 bps

9500 bps

3600 bps

3500 bps

DASD refers to.

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disk storage

track

tape storage

sorting

Imaging used what device to input data.?

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scanner

icon

bar code reader

tablet

Voice input device convert voice input to

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digital code

OCR-A

bar codes

optical marks

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