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 users and each user is allotted a time slice

None of above

An A/D converter does the conversion from

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Digital to analog

Analog to digital

Voltage to ampere

Direct to alternate current

The entire new system is used by a portion of the users.

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direct conversion

pilot conversion

file conversion

parallel conversion

A digital computer system consists of a central processing unit (CPU) interfaced with.

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input devices

auxilary storage

output devices

all of the above

The technique whereby part of the program is stored on disk and is brought into memory for execution as needed is called

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memory allocation

interrupts

virtual storage

prioritized memory

Computer is a combination of:

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Software

Hardware

Both A and B

None

Pick out the wrong statement about computers.

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it is a logical machine

it can access any piece of information that it has in store

it is devoid of emotion, has no feelings or instincts

it approaches its information is unrestricted manner

_________ is not an application software

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internet

Device drive

Games

Multimedia software

Boolean expression for NOR gate with two inputs x and y can be written as.

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x + y__

x. y

x + y

The process of transferring data from one location to another is called:

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Data processing

Data Computing

Data communication

Data sequencing

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

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Alt

Enter

Ctrl

Caps Lock

_________is secondary device

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Hard Disk drive

CD-ROM drive

Tape drive

All

The ability to return a changed disk record to its original location is called.

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magneto-optical

rotational delay

multimedia

updating in place

In a three input NAND gate, if all the inputs are 1, the output is.

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0

1

3

indeterminate

___________coding scheme is used by IBM

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Unicode

ASCII

EBCDIC

BCD

A disk pack within a selected data module is a

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backup unit

Winchester

diskette

Cd-Rom

A computer can't do anything without.

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program

Input device

Output device

VDU

A data arranged in intelligible form is called

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processed data

information

programe`

software

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

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WAN

LAN

Bridge

Gateway

Which of the following is not a component of telecommunications?

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sender

office device

medium

receiver

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

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modems

communication links

gateways

ring network

The process of converting from analog to digital is called.

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modulation

line switching

telecommuting

demodulation

Which one of the following is a graphical shell?

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UNIX

page

utility program

GUI

Four-digit binary number 1011 is represented in the decimal system by.

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7

9

11

13

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

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paging

queuing

slicing

spooling

If electrical power supply to a computer system is inadvertently disrupted, the serious damage would occur to.

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CPU

disk

CRT

printer

DASD refers to

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disk storage

track

tape storage

sorting

The number of times a wave repeats during a specific time interval is called

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Amplitude

Oscillation

Frequency

Pulses

The Barcode is called

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Universal product code

EBCDIC code

ASCll Code

Unicode

Binary Coded decimal number express each decimal digit as

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binary digits

nibble

word

byte

A conceptual error in a program is a/an

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Logical error

Execution error

Syntactical error

None of the above

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