Question # 1

In time division Multiplexing

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Time is doubled between bits of a byte

Time slicing at CPU level takes place

Total time available in the channel is divided between several useres and each user is allotted a time slice

None of these

A portable operating system.

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Generic

Backup

Allocated

Utility

What layer of OSI model does data compression?

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Network

Presentation

Data link

Physical

What are the three things that can be in the cell of a spreadsheet/

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Numeric values, Letters, symbols

Percents, ranges, numeric values

numeric values, labels, formulas

Numeric values, tables, sums

In analog computers time scaling is done to make them operator .

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fast

Slowly

In time delay mode

Either fasts or slow

During E-time the ALUThe heard of a digital computer is.

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Control unit

Memory unit

Logic unit

Visual display unit

A data arranged in intelligible form is called.

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Processed data

Program

Sofware

Information

One Megabyte is equivalent to.

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2¹⁰ bytes

2²⁰bytes

2³⁰bytes

None of these

MS-DOS is a product of

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AT & T

Corel

Microsoft

None of these

A device that connects multiple nodes to the network is.

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A modem

A repeater

A router

A hub

The set of choice on the screen is called an

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Menu

Editor

Reverse video

Template

How many types of modems are available in the market?

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2

3

5

6

Rearranging data is a new sequence is known as.

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Up dating

Batching

Sorting

Summarising

The native language of a computer is called __________ language.

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Machine

Assembler

Pascal

COBOL

program need to be entered into the computer's memory saved as a disk file and translated into the computer's native machine language before they can be executed or run . to enter and save a program, you can use an.

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Fornatter

CAD program

Text editor

Interpreter

Information transformations are performed by the

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Central processing unit

Input devices

Out put devices

File description

Mainframe computers are capable of communicating with several users simultaneously by.

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Using a terminal

Using a supercomputer

Using a workstation

Time sharing

The technique in shared system that avoid interspersed printout from several programs is.

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Paging

Queuing

Slicing

Spooling

If the experts are right, we can expect the price - to - performance ratio of hardware.

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To double every year or two for several years.

To go down every year or two for several years

To stay the same for a while

None of the abvoe

What is meant by the names or labels used to represent values that are used in a BASIC programme.

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Constants

Variables

Characters

None of these

Which of the following is not hardware.

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Meganetic tap

Printer

Assembler

VDU Terminal

What is the maximum length of variable name in C language?

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20

31

250

253

Three major issue that have an impact on the success of successes of educational technology.

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Money, teacher training, motivation of students.

Money, teacher training, restructuring of schools.

Geographical location of school,parental communitment, student interest.

IQ of the students teacher interest, student involvemnt.

The software that allows the user to manipulate photographs and other higher resolution images is called.

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Analog camera

CAD

FAX

Digital image processing software

Which of the following lists best describe the advantages of electronic mail.

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Quick, time shifted, usually has graphics, cheap

Long distance, quick, time shifted, can send data

Communicates attitude, can send data, time shifted popular

Trouble free, quick, time shifted, usually has a voice

Microwave transmission, coaxial cables, and fiber optics are examples of.

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modems

communication links

gateways

ring network

Cabling on a linear bus topology can be extended using which of the following.

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Terminator

Barrel connector

Network adapter card

Medium attachement unit

The purpose of intellectual property law is to.

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Allow the creator to make money

Justly reward mental labor

Encourage innovation

All of the above

Which of the following is not a logical prediction for the future?

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Computers will be smaller and lighter.

Computer will be less expensive

Computer are not going to get any faster, we've reached a limit already

Computer will be easier to use.

Management of an operating system is handled by

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By interpreter

The supervisor program

Utility program

The CPU

Why is Blaise Pascal (1623-1662) considered a pioneer in computers?

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He developed the pascal programming language

He invented a working adding machine

Because of his writings on faith and mysticism

Pascal is not considered a computer pioneer

The process of executing several programs simultaneously by the use of more than one processing unit is called.

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Multiprogramming

Time sharing

Multiprocessing

Batch processing

One or more computers connected to a hub computer is a.

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Ring network

node

Star network

Information utility

The following register keeps track of the program during Execution.

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Address register

Program counter

Data register

Accumulator

Which type of computer operator by directly counting numbers.

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Special purpose

Analog

Digital

Hybrid

Idea processors take a variety of forms, but most are built around this concept.

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Writing

Reading

Processing

Outlining

An online meeting between two or more people is called.

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Telecommuting

Group ware

A conference

A teleconference

Computer operation s are synchronized by

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The CPU clock

Megabytes

The binary system

E-time

What major area of artificial intelligence deals with distinguishing eats from dogs in a computer's view?

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Pattern recognition

Expert systems

Resolution analysis

Natural language

Transmitting a file from a BBS to personal computer is called.

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Booting

Downloading

Uploading

Everypting

A management information system (MIS) can be used by.

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Only top -level managers in the company

Only mid - level managers in the company

Only low level managers in the company

Only MIS can be used by all levels of management

A hardware register used to hold the results or partial results of arithmetic and logical operations is called.

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Accumulator

Instruction Register

Status Register

Stack pointer

Another name for available for purchase software is.

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Secondary software

System software

Packaged software

Peripheral software

Why is CAD preferred over the older technique of drafting board, pencil, and T-square?

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CAD programs can produce the initial design for you

Software is cheaper to purchase than a drafting board

CAD Designs ae easily modified paper designs are not

CAD is only used when pencils can't do the job

The different memory locations are identified by hexadecimal numbers called.

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ASCII code

Bytes

BCD Numbers

Addresses

An engineer who uses a mathematics processor to test the stress capacity of a bridge is.

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Putting live sin danger

Modeling

Vizualizing

Calculating

Electric spreadsheets are appropriate tools for all of the following except.

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Developing financial models

Answering what if questions

Keeping student grade records for a class

Spreadsheets are appropriate for all of these applications.

The key factor in a computer installation that has met with disaster is the.

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Equipment replacement

Loss of hardware

Insurance coverage

Loss of processing ability

Excess-3 code is known as

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Weighted code

Cyclic redundancy code

Self complementing

Algebraic code

The sequential organization is most suitable for.

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Master files in a batch processing environment

Master files on direct access device

Transaction files

None of the abvoe

Error in computer results could be due to

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Encoding of data

Transmission of data

Manipulation of data

All of the abvoe

Software that sotes a picture, not as a collection of dots, but as a collection of lines and shapes is called ________ software.

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Painting

Drawing

Modeling

Dragging

_________ are the computers designed for complex scientific job.

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Mainframe computers

Mini computers

Micro computer

Super computers

A basic operation performed by a computer is.

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Arithmetic operation

Logic operations

Storage and retrieval operations

All of above

The emerging standard for programming complex queries in a database is called.

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SOL

COBOL

1-2-3

Word perfect

Formula can be applied on:

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Values

Labels

Unmerged cells

None of the above

Using computer to design and manufacture products is called

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Inseribing

Detalling

CAD/CAM

Imaging

Charles Babbage worked closely with__ to develop his device.

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Ada Lovelace

Joseph Marie Charles

Herman Hollerith Charles

Lord Byron

Offices that are set up so workers can commute to a location near their home are called.

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Regional work centers

Portable computer centers

BEHEMOTHS

Modem stations

Smart cards

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Have a microprocessor and memory in them

Are currently only used for checking and credit card services

a and b

None of these

In BASIC,Which one of the following is something that does not change its values during execution of the program?

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Variable

Constant

Command

None of these

The portions of a program ignored by the computer since they are only included to help the readerunderstand the program are called.

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Variables

Declarations

Reminder notes

Comments

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

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First steps

Third steps

Second steips

Fourth steps

A plan to trace data to its source is called.

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an audit trail

a vector

Sampling

Volume testing

In preparing a program, one should first.

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Plan the solution

Code the program

Document the problem

Define the problem

A bus line consists of

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Registers

Accumulators

Parallel data paths

Machinie cycles

The size of the printed characters is called.

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Point size

Word size

Print size

None of these

Error messages provided by a compiler are called

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Bug

Diagnostic

Translations

Mistakes

To be computer literate, it is not necessary for you to know.

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How to program a computer

How to use a computer

What computer can and can't do

How to repair a computer

A program called an ___________ translates each assembly language instruction into a machine language instruction.

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Compiler

Assembler

Interpreter

Translator

Stored instructions and data in a digital computer consist of.

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Alphabets

Numerals

Characters

Bits