Question # 1

Voice input device convert voice input to

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digital code

OCR-A

bar codes

optical marks

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

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Fiber optics

Twisted pair wire

coax

Submarine

The transfer of data from one place to another is called

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Data processing

Data distribution

Data communication

Data encryption

All of the following are Guided Communication media except

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Fiber-Optic Cable

Wire Cable

Coaxial Cable

Satellite-based , Microwave communication

Assigning more sector to outer hard disk is called

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zone recording

randomizing

sectoring

data transfer

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

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access time

data transfer time

direct time

cylinder time

The voice channel has a bandwidth of

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0 - 2 KHz

0 - 4 KHz

5 - 10 KHz

10 - 20 KHz

To send data, instruction and information you need a

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Sending device

Receiving device

Channel device

Communication signal

A device used for optical-character recognition is a.

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wand reader

light pen

mouse

MICR reader

A magnetized spot represents

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cpi

MB

0 bit

1 bit

Shift of 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 a(n).

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track

rotational delay

seek time

access arm

Imaging used what devices to input data?

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scanner

barcode reader

icon

tablet

A storage medium which can not support both direct access and sequential access application is

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magnetic drum

hard disk

magnetic tape

floppy disk

A disk pack within a selected data module is a

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backup unit

Winchester

diskette

Cd-Rom

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

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backup tape

DAT

diskette

audio compact disk

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ECAT Computer Science Chapter 3 The Peripheral Devices Online Test MCQs With Answers

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