Q1. Which of the following best describes the function of the control unit?
A Control the operations of memory, processor and input/output devices. Correct
B Perform logical operations.
C Convert external data into a form understood by the computer.
D Perform arithmetic operations.
Explanation
The control unit directs and coordinates the working of the computer system. It manages the sequence of operations and controls how memory, the processor and input/output devices interact. Logical operations and arithmetic operations are primarily handled by the arithmetic logic unit, so those descriptions do not fit the control unit. Converting external data into a computer-readable form is the role of input devices and related interfaces, not the central control unit.