Question # 1

A pictorial screen symbol that represents a computer activity is called a(n).

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pointer

touch screen

icon

MICR

The microphone converts the sound into

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Mechanical signals

Software

Electrical signals

GUI

Program maintenance means

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Maintaining a program exactly the way it was initially developed

Changing a program due to changes in the organization

Removing the errors from a program

Changing a program due to changes in the organization

The analog computer deal directly with.

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number or pulses

measured values of continuous physical magnitudes

signals in the form of 0 or 1

signal in discrete values form 0 to 9

A network that covers small geographic area or single or group of buildings is called

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WAN

LAN

Bridge

Gateway

Boolean description for the exclusive OR gate for two inputs x and y can be written as.

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x + y __

_x _y

x. y + x. y

x . y + x .y

The encoding scheme of data represent as

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EBCDIC code

ASCII code

Unicode

All of the above

A computer can be defined as an electronic device that can

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carry out arithmetic operation

carry out logical operation

do complicated calculation

accept and possessed data by implementing sequentially a set of stored in instruction

Boolean algebra use which of the following to represent arithmetic quantities.

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decimal digits

exponents

binary bits

fractions

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

A network type in which all computers have equal status.

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communication links

peer to peer

WAN

direct connect

To most commonly used output device today is a.

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CRT monitor

keyboard

mouse

card punch

Pick up wrong logical expression

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Records stored on a Direct Access storage device.

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must be read in a specific order

must be read in groups

must be read directly

must be read sequentially or directly

A color screen with the best resolution

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MICR

VGA

SVGA

LCD

TIme-sharing of resources by users is usually.

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based on time slices

based on input

event-driven

operated by spooling

A storage medium which cannot support both direct-access and sequential-access application is.

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magnetic drum

hard disk

magnetic tape

floppy disk

The process of converting from analog to digital is called.

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modulation

line switching

telecommuting

demodulation

The software tools that allow a computer to be used for specific purposes are called.

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firmware

terminals

hardware

application programs

To send data, instruction and information you need a

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Sending device

Receiving device

Channel device

Communication signal

Which of the following operations are used by Boolean algebra.?

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Boolean addition

Boolean multiplication

Boolean complementation

All of the above

Software to persue the Internet.

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gateway

EFT

browser

teleconferencing

An example of peripheral equipment

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CPU

spreadsheet

printer

microcomputer

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

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mouse

trackball

want reader

interactive tablet

Logical addition refers to operation of

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OR gate

AND gate

NOT gate

invertr gate

Who is regarded as the Father of computers.

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John Napier

Pascal

Charles Babbage

Hollerith

For creating and editing legal documents which application package would be most useful?

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Spreadsheet

Word processing

Graphics

Communication

The entire computer is coordinated by

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The ALU

the accumulator

arithmetic operators

the control unit

The half adder circuit has

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one input

two inputs

three inputs

always more than two inputs

If a FORTRAN program begin with statement

INTEGER SALARY, PROFIT,LOSS

Then through the program integer variables will be represented by

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SALARY

PROFIT

LOSS

All of the above

A group of characters that are treated as a single entity.

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bit

byte

word

address

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