Q361
The CPU, after receiving an interrupt from an I/O device
A.
halts for a predetermined time
B.
hands over control of address bus and data bus to the interrupting device
C.
branches off to the interrupt service routine immediately
D.
branches off to the interrupt service routine after completion of the current instruction
AnswerE.
None of the above
Answer: Option D
Solution
Answer: Option D
Solution:
It stands for Interrupt service routine or also known as an interrupt handler. It is a software process invoked by an interrupt request from a hardware device. It handles the request and sends it to the CPU i.e. interrupting the active process.