Question # 1

Step-by-step instructions that run the computer are.

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hardware

documents

programs

CPUs

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

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Alt

Enter

Ctrl

Caps Lock

Arranging classified data in a predetermined sequence to facilitate processing is called.

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storing

sorting

processing

classifying

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0

1

x

The process of allocating main memory to programs and keeping the programs in memory separate from each other is called

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memory protection

memory management

virtual storage

real storage

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

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hardware

instruction

software

algorithm

A color screen with the best resolution has the most.

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CRT

VGA

COM

pixel

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A + B + C + D

A BC D

A + B + C + D

Logical multiplication refers to operation of.

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OR gate

AND gate

NOT gate

inverter gater

The equipment attached to CPU which computer can access are called

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Hardware

input output devices

peripherals

computer components

Time scaling in analog computers is done to make them.

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operate fast

operate slowly

operate in time delay mode

either operate fast or operate slowly

Printer is an example of

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Softcopy

Hardcopy

Photocopy

Nothing

Diodes are used in analog computer circuit as

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phase shifter

rectifier

binary logic

limiter

The first digital computer to work electrically was the.

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UNIVAC

Atanasoff-Berry Computer

Mark I

analytical machine

Imaging used what devices to input data?

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scanner

barcode reader

icon

tablet

Pointing devices are

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Mouse

Trackball

Touch Screen

All of the above

Number 375₁₀is equivalent in binary system to.

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101110101

100110101

101110111

101110011

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

Which of the following variable name is legal?

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PAK 123

A * B

COMPUTER

A/B

A computer based system in which a telephone message is recorded in digital form and then forwarded to others is

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a teleconferencing

voice mail

a bulletin board

telecommuting

A device that inputs data by scanning letters and numbers is a.

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keyboard

wand reader

mouse

diskette

A device used for optical character recognition is

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wand reader

light pen

mouse

micr reader

A storage medium which can not support both direct access and sequential access application is

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magnetic drum

hard disk

magnetic tape

floppy disk

The Media Access Control sub layer resides in which layer

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Data link

Physical

Network

Transport

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

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

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

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modems

communication links

gateways

ring network

Popular object-oriented languages.

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Pascal, Modula-3

C++ , Smalltalk

LOGO , PROLOG

COBOL , BASIC

The central processing Unit (CPU) comprises of.

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memory, VDU , and printer

input device , output device and memory

store , arithmetic and logic unit and control unit

software, hardware and power supply unit

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

The encoding scheme of data represent as

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EBCDIC code

ASCII code

Unicode

All of the above

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