Important Computer MCQS For CSS PMS PPSC FPSC NTS -Set 1

1. A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is
A)Memory

B)Buffer

C)Accumulator

D)Address

2. Computer is free from tiresome and boardroom.We call it
A)Accuracy

 

B)Reliability

 

C)Diligence

 

D)Versatility

3. Integrated Circuits(ICs) are related to which generation of computers?
A)First generation

B)Second generation

C)Third generation

D)Fourth generation

4. CD-ROM is a
A)Semiconductormemory

B)Memoryregister

C)Magneticmemory

D)Noneofabove
5. A hybrid computer:
A)Resembles digital computer

B)Resembles analogue computer

C)Resembles both a digital and analogue computer

D)Noneoftheabove

6. Which type ofcomputers uses the 8bit code called EBCDIC?
A)Minicomputers

B)Microcomputers

C)Mainframecomputers

D)Supercomputer

7.The ALU of a computer responds to the commands coming from
A)Primarymemory

B)Controlsection

C)Externalmemory

D)Cachememory

8. Chief component of first generation computer was:

A)Transistors

B)Vacuum Tubes and Valves

C)IntegratedCircuits

D)Noneofabove

9.To produce high quality graphics(hardcopy) in color, you would want to usea/n:
A)RGBmonitor

B)Plotter

C)Ink-jetprinter

D)Laserprinter

10. What are the stages in the compilation process?
A)Feasibilitystudy,system designandtesting

B)Implementation and documentation

C)Lexical Analysis,syntax analysis,and code generation

D)None of the above
11. Which of the following IC was used in third generation of computers?
A)SSI

B)MSI

 

C)LSI

D)Both a and b
12. The main electronic component used in first generation computers was
A)Transistors

B)Vacuum Tubes and Valves

C)Integrated Circuits

D)Noneofabove

13. A dumb terminal has
A)an embedded microprocessor

B)extensive memory

C)independent processing capability

D)a keyboard and screen

14. One milli second is
A)1second

B)10th of a seconds

C)1000th of a seconds

D)10000th of a seconds

15. The output quality of a printer is measured by
A)Dot persq.inch

B)Dot per inch

C)Dot sprinted per unit time

D)All of the above

16. Which of the following was a special purpose computer?
A)ABC

B)ENIAC

C) EDVAC

D)All of the above

17.What was the computer invented by Attanasoff and Clifford?

A)MarkI

B)ABC

C)Z3

D)None of above

18. Which of the following storage devices can store maximum amount of data?
A)Floppy Disk

B)Hard Disk

C)Compact Disk

D)Magnet o Optic Disk


19.Which computer was considered the first electronic computer until 1973 when court invalidated the patent?
A)ENIAC

B)MARKI

C)Z3

D)ABC
20.A physical connection between the microprocessor memory and other parts of the microcomputer is known as
A)Path

B)Address bus

C)Route

D)All of the above

21. High density double sided floppy disks coulds tore of data
A)1.40MB

B)1.44GB

C)1.40GB

D)1.44MB
22. A high quality CAD system uses the following for printing  drawing and graphs

A)Dotmatrixprinter

B)Digitalplotter

C)Lineprinter

D)Alloftheabove

23. Which of the following is notan input device?
A)OCR

B)Opticalscanners

C)Voice recognition device

D)COM (Computer Output to Microfilm)

24. The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately
A)16digits

B)6digits

C)9digits

D)Allofabove

25.In most of the  IBM PCs ,the CPU, the device drivers, memory,  expansion slots and active components are mounted on a single board. What is the name of the board?
A)Motherboard

B)Daughterboard

C)Bredboard

D)Fatherboard

26.In most IBM PCs, the CPU, the device drives ,memory expansion slots and active components are mounted on a single board.What is the name of this board:

A)Motherboard

B)Breadboard

C)Daughterboard

D)Grandmotherboard

27. Magnetic disks are the most popular medium for
A)Directaccess

B)Sequentialaccess

C)Bothofabove

D)Noneofabove

28.A technique used by codes  to convert  ananalog signal into a digital bit stream is known as

A)Pulse code modulation

B)Pulsestretcher

C)Queryprocessing

D)Queuemanagement

29. Regarding aVDU, Which statement is more correct?
A)It is an output device

B)It is an input device

C)It is a peripheral device

D)It is hardware item

 

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