NIMCET 2012 — Computer PYQ
NIMCET | Computer | 2012Which of the following units is used to supervise each instruction in the CPU?
Choose the correct answer:
- A.
Control unit
(Correct Answer) - B.
Accumulator
- C.
ALU
- D.
Control Register
Control unit
Explanation
The correct answer is (a) Control unit.
Logic:
The Central Processing Unit (CPU) consists of various components that manage the Fetch-Decode-Execute cycle. The Control Unit (CU) acts as the manager of the processor.
We can represent the functional components of a CPU as a set C:
The supervision and coordination of data flow can be modeled by the control signals S generated by the Control Unit for any instruction i:
Where Scontrol directs the Arithmetic Logic Unit (ALU) and memory units on how to respond to the instruction. Since it "supervises" or coordinates all activities, the Control Unit is the correct choice.
Explanation
The correct answer is (a) Control unit.
Logic:
The Central Processing Unit (CPU) consists of various components that manage the Fetch-Decode-Execute cycle. The Control Unit (CU) acts as the manager of the processor.
We can represent the functional components of a CPU as a set C:
The supervision and coordination of data flow can be modeled by the control signals S generated by the Control Unit for any instruction i:
Where Scontrol directs the Arithmetic Logic Unit (ALU) and memory units on how to respond to the instruction. Since it "supervises" or coordinates all activities, the Control Unit is the correct choice.