Question:

When a subroutine is called, the address of the instruction following the CALL instructions stored in/on the

A.

stack pointer

B.

accumulator

C.

program counter

D.

stack

Answer» d. stack

Question:

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

Answer» c. sta and lda

Question:

Instruction pipelining has minimum stages

A.

4

B.

2

C.

3

D.

6

Answer» b. 2

Question:

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

A.

instruction pointer

B.

memory pointer

C.

data counter

D.

file pointer

Answer» a. instruction pointer

Question:

The advantage of RISC processor over CISC processor is that

A.

the hardware architecture is simpler

B.

an instruction can be executed in one cycle

C.

less number of registers accommodate in chip

D.

parallel execution capabilities

Answer» b. an instruction can be executed in one cycle

Question:

In a single byte how many bits will be there?

A.

8

B.

16

C.

4

D.

32

Answer» a. 8

Question:

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

Answer» d. to decode program instruction

Question:

Dynamic RAMs are best suited to

A.

slow system

B.

large system

C.

one bit system

D.

none of the above

Answer» a. slow system

Question:

Which of the following is true about interrupts?

A.

they are generated when memory cycles are stolen

B.

they are used in place of data channels

C.

they can be generated by arithmetic operation

D.

they can indicate completion of an i/o operation

Answer» a. they are generated when memory cycles are stolen

Question:

Which one of the following is most suitable to make a parity checker

A.

and gate

B.

or gate

C.

exclusive- or gate

D.

none of the above

Answer» c. exclusive- or gate