Computer Organization and Architecture Objective Type Questions and Answers | Computer Organization and Architecture Quiz

21 Which of the following registers is used to keep track of address of the memory location where the next instruction is located?

A Memory Address Register

B Memory Data Register

C Instruction Register

D Program Register

View Answer

Answer: Program Register

22 Data hazards occur when ……

A Greater performance loss

B Pipeline changes the order of read/write access to operands

C Some functional unit is not fully pipelined

D Machine size is limited

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Answer: Pipeline changes the order of read/write access to operands

23 A pipeline is like ………………..

A an automobile assembly line

B house pipeline

C both a and b

D a gas line

View Answer

Answer: an automobile assembly line

24 A microprogram written as string of 0’s and 1’s is a ………….

A Symbolic microinstruction

B binary microinstruction

C symbolic microinstruction

D binary microprogram

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Answer: binary microprogram

25 Memory address refers to the successive memory words and the machine is called as …………

A word addressable

B byte addressable

C bit addressable

D Tera byte addressable

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Answer: word addressable

26 The access time of memory is …………… the time required for performing any single CPU operation.

A Longer than

B Shorter than

C Negligible than

D Same as

View Answer

Answer: Longer than

27 CPU does not perform the operation ………………

A data transfer

B logic operation

C arithmetic operation

D all of the above

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Answer: data transfer

28 PC Program Counter is also called ……………….

A instruction pointer

B memory pointer

C data counter

D file pointer

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Answer: instruction pointer

29 A complete microcomputer system consist of ………..

A microprocessor

B memory

C peripheral equipment

D all of the above

View Answer

Answer: J.M.Keynes

30 A collection of lines that connects several devices is called …………..

A bus

B peripheral connection wires

C Both a and b

D internal wires

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Answer: bus

31 Memory access in RISC architecture is limited to instructions

A CALL and RET

B PUSH and POP

C STA and LDA

D MOV and JMP

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Answer: STA and LDA

32 Which of the following code is used in present day computing was developed by IBM corporation?

A ASCII

B Hollerith Code

C Baudot code

D EBCDIC code

View Answer

Answer: EBCDIC code

33 Pipeline implement

A fetch instruction

B decode instruction

C fetch operand

D calculate operand

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Answer: calculate operand

34 What is meant by a dedicated computer?

A which is used by one person only

B which is assigned to one and only one task

C which does one kind of software

D which is meant for application software only

View Answer

Answer: which is meant for application software only

35 What is the control unit’s function in the CPU?

A To transfer data to primary storage

B to store program instruction

C to perform logic operations

D to decode program instruction

View Answer

Answer: to decode program instruction

36 In Reverse Polish notation, expression A*B+C*D is written as

A AB*CD*+

B A*BCD*+

C AB*CD+*

D A*B*CD+

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Answer: AB*CD*+

37 Floating point representation is used to store ______.

A Boolean values

B whole numbers

C real integers

D integers

View Answer

Answer: real integers

38 Suppose that a bus has 16 data lines and requires 4 cycles of 250 nsecs each to transfer data. The bandwidth of this bus would be 2 Megabytes/sec. If the cycle time of the bus was reduced to 125 nsecs and the number of cycles required for transfer stayed the same what would the bandwidth of the bus?

A 1 Megabyte/sec

B 4 Megabytes/sec

C 8 Megabytes/sec

D 2 Megabytes/sec

View Answer