Consider the following two statements about interrupt handling mechanisms in a…
GATE · 2026 · CS · Set 2 · Computer Science & IT
Consider the following two statements about interrupt handling mechanisms in a CPU.
S1: In non-vectored interrupt mechanism, it usually takes more time to start the Interrupt Service Routine (ISR) when compared to that in a vectored interrupt mechanism.
S2: In daisy-chain interrupt mechanism, the CPU polls all the input devices individually to determine the source of the interrupt.
Which one of the following options is correct?
- A.
Both S1 and S2 are true
- B.
Both S1 and S2 are false
- C.
S1 is true and S2 is false
- D.
S1 is false and S2 is true
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