Computer Science Multiple Choice Questions and Answers on CPU

Questions

6 CPU gets the address of next instruction to be processed from

A Instruction register

B Memory address register

C Index register

D Program counter

Answer: Option [D]

7 Cycle Stealing refers to -

A reduction in the number of clock cycles for memory access in a cache memory

B overlapping of the memory refresh operation and memory read operations in dynamic memories

C reduction in instruction cycle time through instruction pipelining

D none of these

Answer: Option [D]

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8 CPU consists of

A ALU, Control Unit and Registers

B ALU and Control Unit

C ALU, Control Unit and Hard Disk

D ALU, Control Unit and Monitor

Answer: Option [A]

9 Which application is handled in ROM ?

A Storage for information on cabling of terminals, such as which ports have terminals on them

B Storage for protected passwords

C Storage for microprograms

D Storage for temporary variables

Answer: Option [C]

10 Which of following coordinates various operations using timing signals ?

A control unit

B memory unit

C Input-Output Unit

D ALU

Answer: Option [A]