Question # 1

Analog signal is measured in

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Volts

Pulses

Hertz

WATTS

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

Internal modem is connected to

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DCE cable

RJ 45 cable

RS 232 serial port

DTE cable

The most common storage devices in a computer system are.

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printers and monitors

disk drives and printer

disk drives and tape derives

tape drives and keyboards

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

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

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track

rorational delay

access arm

seek time

Imaging used what devices to input data?

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scanner

barcode reader

icon

tablet

The transfer of data from one place to another is called

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Data processing

Data distribution

Data communication

Data encryption

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

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keyboard

wand reader

mouse

diskette

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

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rotational delay

data transfer

seek time

head switching

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

The most commonly used character code/s transmission is/are

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EBCDIC

ASCII

both EBCDIC and ASCII

nethier EBCDIC and ASCII

The encoding scheme of data represent as

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EBCDIC code

ASCII code

Unicode

All of the above

DASD refers to.

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disk storage

track

tape storage

sorting

A device used for optical-character recognition is a.

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wand reader

light pen

mouse

MICR reader

An example of peripheral equipment

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CPU

spreadsheet

printer

microcomputer

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

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