CU stands for……….
a) control unit
b) cache unit
c) calculating unit
d) communication unit
Which of the following operations are performed by control unit?
a) fetch instruction from memory
b) interpret instruction
c) controls the execution of instructions
d) all of these
When CPU executes and instruction, which of the following happens
first?
a) instruction fetch
b) decode instruction
c) execute instruction
d) all of these
Which of the following is the function of control unit?
a) to read and interpret program instruction
b) direct the operation of processor
c) control flow of program
d) all of these
How many steps are included in machine cycle?
a) one
b) two
c) three
d) four
Machine cycle refers to?
a) instruction time only
b) calculation time only
c) execution time only
d) both a & c
