COMPUTER SOFTWARE
OPERATING SYSTEMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following is the best definition of an interrupt service routine?
|
|
A software routine that prevents your system from crashing if it gets an interrupt
|
|
|
A software routine to handle interrupts which can only be invoked by software
|
|
|
A software routine that hardware or software invokes in response to an interrupt
|
|
|
A software routine which is always invoked by a user interrupt action
|
Explanation:
Detailed explanation-1: -Therefore, A trap, also known as a software interrupt, is an instruction that explicitly generates an exception condition.
Detailed explanation-2: -Interrupt is the method of creating a temporary halt during program execution and allows peripheral devices to access the microprocessor. The microprocessor responds to that interrupt with an ISR (Interrupt Service Routine), which is a short program to instruct the microprocessor on how to handle the interrupt.
There is 1 question to complete.