Question

Which of the following task done by Central processing unit?
a. Read instructions out of memory unit;
b. Encode such instructions;
c. Translating the processed data from human coded form to machine readable form.

• A. Only 1, 2
• B. Only 1, 3
• C. Only 2, 3
• D. All 1, 2, 3

Answer 1

Answer: (A)

Only 1, 2

The control unit is entrusted with the responsibility of controlling and coordinating the activities of all other units of the computer system. Specifically, it performs the following functions:
a. Read instructions out of memory unit;
b. Decode such instructions;
c. set up the routing of data, through internal circuitry/wiring to the desired place at right time; and
d. Determine the input device from where to get next instructions after the instructions in hand has been executed.