Question # 1

The microphone converts the sound into

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Mechanical signals

Software

Electrical signals

GUI

Abother word for printer

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monochrome

microfiche `

pixel

cursos

Scheduling deadlines and milestones can be shown on a.

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system survey

decision table

prototype

Gantt chart

People on a LAN can share.

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Printer

CD/ROM disk drive

modem

fax machine

All of the above

The binary number 10011101 is equal to the hexadecimal number.

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9E

9F

9D

FF

The process of converting from analog to digital is called.

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modulation

line switching

telecommuting

demodulation

In Boolean algebra A.A.A.A.A

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5A

A

A⁵

1

The highest layer of OSI model is

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Physical layer

Network layer

Presentation layer

Application layer

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

Who is regarded as the father of computers

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John Napier

Pascal

Charles Babbage

Hollerith

Imaging uses what device to input data:

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Tablet

Icon

Barcode Reader

Scanner

An example of peripheral equipment

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CPU

spreadsheet

printer

microcomputer

The output of a sequential circuit depends upon

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present input

past inputs

both a and b

none of a and b

A device that receives messages is called:

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Transmitter

Receiver

Source

Sender

The entire computer is coordinated by

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The ALU

the accumulator

arithmetic operators

the control unit

A built in number that identifies a location in storage.

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character

word

byte

address

During E-time the ALU.

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examines the instruction

enters the instruction

executes the instruction

elicits the instruction

A CPU has.

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control unity consisting of program counter and instruction decoder, and arithmetic unit having accumulator

bubble memory

visual display unit

auxiliary storage unit

OSI model has

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11 layers

7 layers

3 layers

10 layers

Data and instructions are put into primary storage by.

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memory

the control unit

secondary storage

the 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

_______ is a photoelectric scanner that translate the barcode symbol into digital code.

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MICR

Barcode Reader

OCR

OMR

The information that is to be transferred from one location to another is called:

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Signals

Data

Sender

Message

The heart of a digital computer is....

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control unit

memory unit

logic unit

visual display unit

Binary number 10101101 is equivalent in decimal form to.

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170

171

173

174

Primary storage for the UNIVAC was via

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punched cards

transistors

magnetic cores

disk packs

The number 7F00 in Hexadecimal when multiplied by 61 us

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7F16

167F00

7F006

None of these

Which input device is often attached to laptop computers.

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trackball

inscriber

graphics display

wand reader

Following devices are used in simplex mode

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Radio

Television

a , b

Multiplexers

A computer process information

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as direct by the operator

automatically

at once

gradually and eventually

The concurrent processing of computer program via terminals on one computer system is an example of.

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real time processing

time-sharing

Interactive processing

all of the above

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