Computer Overview – Multiple Choice Questions

Q1. In computer science, by information we mean

(a) any output coming out from computer

(b) processed data put in intelligent form

(c) a report printed by computer

(d) plural of data


Ans.Option (b)


Q2. Data is a collection of

(a) Facts and entities relevant to user

(b) Raw material

(c) Numbers and alphabets

(d) Input material for a computer


Ans. Option (a)


Q3. The central processing unit

(a) Is operated from the control panel

(b) Is controlled by the input data entering the system

(c) Controls the storage unit

(d) controls all input, output and processing


Ans. Option (c)


Q4. Which of the following does not represent an I/O device?

(a) speaker which beeps

(b) plotter

(c) joystick

(d) ALU


Ans. Option (d)


Q5. Storage of 1 KB means the following number or bytes:

(a) 1000

(b) 964

(c) 1024

(d) 1064


Ans. Option (c)


Q6. One Megabyte is equivalent to

(a) 210 bytes

(b) 220 bytes

(c) 230 bytes

(d) none of these


Ans. Option (d)


Q7. Computer’s main memory

(a) performs all calculations

(b) receives input data

(c) is extremely limited

(d) is computer’s workbench


Ans. Option (d)


Q8. The control unit of the computer

(a) performs logical operations on the data

(b) manually operates the computer

(c) directs the other units of the computer

(d) all the above


Ans. Option (c)


Q9. Which of the following are parts of the CPU?


(b) memory

(c) control unit

(d) input device

(e) printer


Ans. Option (a) and (c)


Q10. The unit which coordinates the step-by-step running of the whole computer is the

(a) input device

(b) logic unit

(c) ALU

(d) control unit

(e) main memory


Ans. Option (e)


Q11. The purpose of an application program is to:

(a) convert program written in high level language to machine level language

(b) meet specific user’s needs

(c) allow the operating system to control resources better

(d) make equipment run better


Ans. Option (b)


Q12. Which of the following is not hardware?

(a) Hard Disk

(b) Printer

(c) Keyboard

(d) CPU

(e) Assembler

(f) Program to print table of 13


Ans. Option (d) and (e)


Q13. First generation computers:

(a) used vacuum tubes instead of switches and relays

(b) stored programs in the memory of the computer.

(c) were built in 19th century

(d) all the above


Ans. Option (d)


Q14. Second generation computers used

(a) vacuum tubes instead of electro-mechanical devices

(b) transistors instead of vacuum tubes

(c) integrated circuitry

(d) none of the above


Ans. Option (b)


Q15. Third generation computers:

(a) were the first to use built-in error detecting devices

(b) used transistors instead of vacuum tubes

(c) were the first to use integrated circuitry

(d) none of the above


Ans. Option (c)


Q16. Fourth generation computers:

(a) were the first to use microcomputers

(b) were built after 1970

(c) include microcomputers

(d) all the above


Ans. Option (a) and (c)


Q17. A microprocessor is

(a) a solid state device

(b) capable of performing arithmetic operations

(c) capable of performing logical operations

(d) all the above


Ans. Option (d)


Q18. The modern age of the data processing began with the completion of the computer:

(a) Analytical Engine


(c) MARK I



Ans. Option (a)

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