Question # 1

The heart of a digital computer is....

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control unit

memory unit

logic unit

visual display unit

An A/D converter does the conversion from

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Digital to analog

Analog to digital

Voltage to ampere

Direct to alternate current

Charles Babbage set out to create a device that could carry out any calculation to twenty digits of accuracy called a(n):.

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computer

analytical engine

calculator

mainframe

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

According to absorption law x. (x+y) =

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x

y

1+x

1+y

A network type in which all computers have equal status.

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communication links

peer to peer

WAN

direct connect

The main advantage of hexadecimal number is the case of conversion from hexadecimal to.

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ASCII code

binary

octal

decimal

_________is secondary device

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Hard Disk drive

CD-ROM drive

Tape drive

All

Which of the following is an example of volatile memory.

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ROM

RAM

PROM

Hard disk

A computer based system in which a telephone message is recorded in digital form and then forwarded to others is

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a teleconferencing

voice mail

a bulletin board

telecommuting

The differential equations are solved by.

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analog computers

digital computers

differential machine

both analog and digital computers

The output will be one in case any input is one in the case of.

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OR gate

AND gate

NAND gate

NOT gate

Raw data is processed by the computer into

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number of sheet

updates

paragraph

information

The cursor can be moved rolling this devices on a flat surface:

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mouse

trackball

want reader

interactive tablet

DASD refers to.

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disk storage

track

tape storage

sorting

Data items are generally classified into which type of codes

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Numeric

Alphanumeric

Character

All of the above

In the course of a systems project, systems design

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follows systems analysis

follows development

precedes systems analysis

is the fourth phase

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