| Date | May 2018 | Marks available | 2 | Reference code | 18M.1.HL.TZ0.10 |
| Level | HL | Paper | 1 | Time zone | no time zone |
| Command term | Outline | Question number | 10 | Adapted from | N/A |
Question
Outline the function of an interrupt.
Markscheme
Award [2 max].
An interrupt is a signal to the CPU sent by hardware or software;
The function of an interrupt is to alert the CPU to suspend execution of the current program;
And to transfer the control to the interrupt handler (which saves the state of the current program to the interrupt stack, services the interrupt and resumes the normal CPU activity);
Examiners report
[N/A]
