Consider a system with 3 I/O devices: D1, D2, and D3, with increasing priorities of 1 (low priority), 2 and 3 (high priority), respectively. At t=0, user program begins, device D2 interrupt occurs at t=10, device D1 interrupt occurs at t=15, device D3 interrupt occurs at t=25. We assume D1 ISR takes 30-time units, D2 ISR takes 20 units, and D3 ISR takes 10 units. (06)
Explain interrupt process and its advantage.
Explain briefly the two techniques that can be used to deal with multiple interrupts.
Give the advantage and disadvantage of the first technique compared to the second one.
Give time sequence (start and end time of each interrupt) considering the first technique.
Give time sequence (start and end time of each interrupt) considering the second technique.
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