Which of the following is responsible for coordinating various operations using timing signals?

Arithmetic-logic Unit
Control unit
Memory unit
Input/Output unit E. None of the above

The correct answer is B. Control unit.

The control unit is the part of a computer that is responsible for coordinating the various operations of the computer. It does this by sending out timing signals to the other parts of the computer, telling them when to perform their tasks.

The arithmetic-logic unit (ALU) is responsible for performing arithmetic and logical operations. The memory unit is responsible for storing data and instructions. The input/output unit is responsible for communicating with the outside world.

None of the other options are responsible for coordinating various operations using timing signals.