Question # 1

The encoding scheme of data represent as

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EBCDIC code

ASCII code

Unicode

All of the above

Programming and testing are elements of.

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system analysis

system development

implementation

system design

Following devices are used in simplex mode

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Radio

Television

a , b

Multiplexers

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

A computer can be defined as an electronic device that can: (choose the most precise definition).

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carry out logical functions

carry out arithmetical operations

accept and process data using a set of stored instructions

present information on a VDU

______is not an example of input device.

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Speaker

Scaner

Mouse

Digital Camera

Object program is

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A program written in machine language

A program to be translated into machine language

The translation of a high-level language into machine language

None of the above

__________key is used to change lowercase letters mode to uppercase and vice versa.

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Alt

Enter

Ctrl

Caps Lock

A program or set of programs that is specially designed to control the computer system is called:

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System software

Application

Freeware

Shareware

A collection of software that controls the overall operation of a computer is called

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application software

programming language

system software

operating software

Shift of a 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

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

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Boolean addition

Boolean multiplication

Boolean complementation

All of the above

Which of the following is a Correct definition of volatile memory?..

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It is the latest type of bubble memory

It loses its contents at high ambient temperatures

Its contents are lost on failure of power supply

It has to be kept in air tight boxes always

An application package is used to

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Meet specific needs of a user

Run the computer system better

Run the compiler smoothly

Enable operating system control hardware better

A portable operating system

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generic

backup

allocated

utility

Which of the following is associated with optics

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Winchester

RAM

CD-ROM

None of these

Voice input devices convert voice input to.

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digital code

OCR-A

bar codes

optical marks

The correct order of data hierarchy is

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bit-byte-record-field-file-data base

bit-byte-file-record-field-data base

bit-byte-field-record-file-data base

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

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WAN

LAN

Bridge

Gateway

Data is permanently stored in

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Hard disk

Ram

Printer

Cache Memory

The Media Access Control sub layer resides in which layer

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Data link

Physical

Network

Transport

Hellerith's Tabulating Machine company eventually became.

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IBM

AT & T

Apple

General Electric

A type of computer that is faster because it has fewer instructions.

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symbolic

RISC

ASCII-8

ROM burner

Which of the following IC logic family has maximum fan out capacity?

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TTL

DTL

MOS

CMOS

Which input device is often attached to laptop computers:

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trackball

inscriber

wand reader

graphic display

Boolean algebra is.

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used for arithmetical operation is ALU

an aid for binary conversion

useful for error detection and error correction

used to describe the behavior and structure of logic networks and as an aid in the design of logic system

Identify the legal FORTRAN arithmetic assignment statement?

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X = a+b +1

0.75 = A - B^c

SN - a * (1-r **n) / (1 - r)

NET + PR = SALE - COST

Raw data is processed by the computer into

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number of sheet

updates

paragraph

information

97₁₀(decimal) in octal number system is equivalent to.

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136₈

140₈

139₈

141₈

When the control unit directs the ALU to perform an operation on the data, the machine cycle is involved in its.

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first step

third step

second step

fourth step

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