Question # 1

Which of the following is the example of sequential circuit

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flip-flop

counter

shift register

accumulator

Types of Flat-Panel Display are

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LCD

EL

Gas-plasma

All of the above

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

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hardware

instruction

software

algorithm

A bar code reader is an example of a(n).

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processing device

storage device

Input device

output device

A systems analyst would observe the flow of data and interrelations of people within an organization during.

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detail design

preliminary design

systems analysis

a system survey

Which of the following is not a category of network problems.

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Newsgroup problems

Physical problems

Electrical problems

Viruses

A COBOL program has how many divisions

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four

two

five

seven

ASCII 7 bit code can represent maximum

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265 character

128 character

64 character

65536 character

The binary number 10011101 is equal to the hexadecimal number.

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9E

9F

9D

FF

According to aborption law x+x.y=

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x

y

1 + x

1 + y

PDP-5,PDP-8,IBM-360 series and IBM-370 series belong to the.

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first generation computers

second generation computers

third generation computers

fourth generation computers

The major disadvantage of magnetic tapes is.

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cost

unreliability of store data

slow data recording

data is to be accessed sequentially

A magnetized spot represents

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cpi

MB

0 bit

1 bit

In multiprogramming, the process of confining each program to certain defined limits in memory is called

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spooling

time-sharing

program scheduling

memory protection

First-generation computers were characterized by the use of the.

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microprocessor

vacuum tube

transistor

integrated circuit

125₈(octal) in decimal equivalent is equal to.

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83₁₀

84₁₀

85₁₀

86₁₀

Microwave and Communication Satellite are example of

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Guided

Un-guided

Simplex

Router

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

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

Light sound and radio waves are examples of :

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Analog Signals

Digital Signals

Simple Signals

None

The card which is used for Internet

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Network card

Modem card

VGA card

Graphic card

Computer operations are synchronized by.

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the CPU clock

megabytes

the binary system

E-time

An analog computer can be worked directly with.

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magnetic tapes

punched card

magnetic disk

none of the above

The signals produced by a computer or terminal to be sent over phone lines must be converted to.

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modems

analog signals

digital signals

microwave

Boolean description for the exclusive OR gate for two inputs x and y can be written as.

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x + y __

_x _y

x. y + x. y

x . y + x .y

126₈+ 425₈= __________

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111101011₂

101101001₂

101101011₂

101100011₂

The most common storage devices in a computer system are.

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printers and monitors

disk drives and printer

disk drives and tape derives

tape drives and keyboards

In EBCDIC (extended binary coded decimal interchange code) each character is denoted by

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3 bits

4 bits

5 bits

8 bits

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

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magneto optical

rotational delay

updating in place

multimedia

Raw data is processed by the computer into.

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number sheets

updates

paragraphs

information

If one or more computers are connected to a central Hub, this topology is called

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Ring topology

Bus topology

Star topology

Modulation

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