Question

To indicate the completion of task allocated in a closely (tightly) coupled system, the microprocessor uses

(a) status bit in memory

(b) interrupts the host

(c) status bit in memory or interrupts the host

(d) clock pulse

I got this question in unit test.

My question is based upon Tightly Coupled and Loosely Coupled Systems in division Multimicroprocessor Systems of Microprocessor

Answer 1

The correct answer is (c) status bit in memory or interrupts the host

The explanation: The microprocessor in a closely coupled system either uses a status bit in memory or interrupts the host to inform it about the completion of task allotted to it.