Question # 1

According to Boolean algebra A+A+......+A is

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A

n A

0

1

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

To send data, instruction and information you need a

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Sending device

Receiving device

Channel device

Communication signal

An arrangement in which data is transmitted in both directions at a time is called

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Simplex

Full duplex

Half duplex

Multi-duplex

Who invented the modem?

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IBM

DEC

AT&T information System, USA

Apple computers Inc

Diodes are used in analog computer circuit as

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phase shifter

rectifier

binary logic

limiter

Retaining data for future reference is called

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storing

sorting

memorizing

programming

A dump terminal signifies that

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It has lower IQ compared to an intelligent terminal

It can not be used as an independent computer

It does not have a keyboard connected to it

It belongs to firs generation computers

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

How many input leads will be required for a chip containing four two-input Not gates?

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7

14

12

13

The basic operation performed by the computer is called

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arithmetic operation

logic operation

storage and retrieval operation

all of above

IBM stands for

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International Business Machine

International Binary Machine

Internal Business Machine

International Business Microsoft

Programs written to cause computers to function in a desired way are called.

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hardware

instruction

software

algorithm

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

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

The lowest level of management is concerned with

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Operational information

Traditional information

Long Term planning

Strategic information

The fist Apple computer was built in

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a garage

a warehouse

an apartment

a factory

An operating system is a

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set of users

form of time-sharing

set of programs

supervisor program

Data and instructions are put into primary storage by.

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memory

the control unit

secondary storage

the ALU

Another name of main memory is :

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Secondary memory

Primary storage

Permanent Memory

None

The language Smalltalk is

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procedural oriented

document oriented

problem oriented

object oriented

Prewritten standard file-handling programs are called

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pull-down menus

language

supervisors

utilities

_________ is not an application software

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internet

Device drive

Games

Multimedia software

The most common protocol used in WAN is

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Ethernet

X.25

IEEE

ISO

A device used for optical character recognition is

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wand reader

light pen

mouse

micr reader

An error in a computer hardware and software is called a bug. Another name for its is

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glitch

hacker

virus

pixel

Logical security for on-line systems is achieved primarily by ________ and authorization codes

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MIS

Passwords

Tactical

None of the above

Pick out the wrong definition

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Access time - time needed to access the output

EDP- acronym for Electronic Data Processing

COBOL - a language used for business data processing

Control unit - heart of a computer

Network topologies are categorized into the following basic types

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Bus, Ring

Star , Tree

Mesh

All of the above

The number A9D in Hexadecimal system is equivalent to which number in binary system.

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101010111101

101010011101

101110011101

101010011111

In the computer world, the word digital means information that is in.

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discrete units

units that can be counted

continuous , smooth form

a and b

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