Question

What functions are performed by the control unit? Can we call it the control centre

of computer system? Why? ​

Answer 1

Answer:

The control unit (CU) is a component of a computer's central processing unit (CPU) that directs operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions.

Answer 2

Answer:

The control unit is the main component of a central processing unit (CPU) in computers that can direct the operations during the execution of a program by the processor/computer. The main function of the control unit is to fetch and execute instructions from the memory of a computer. It receives the input instruction/information from the user and converts it into control signals, which are then given to the CPU for further execution. It is included as a part of Von Neumann architecture developed by John Neumann. It is responsible for providing the timing signals, and control signals and directs the execution of a program by the CPU. It is included as an internal part of the CPU in modern computers. This article describes complete information about the control unit.

What is the Control Unit?

The component which receives the input signal/information/instruction from the user and converts into control signals for the execution in the CPU. It controls and directs the main memory, arithmetic & logic unit (ALU), input and output devices, and also responsible for the instructions that are sent to the CPU of a computer. It fetches the instructions from the main memory of a processor and sent to the processor instruction register, which contains register contents.