Question: In interrupt - driven I / O , what happens immediately after a device triggers an interrupt? The CPU halts all other processes permanently. The

In interrupt-driven I/O, what happens immediately after a device triggers an interrupt?
The CPU halts all other processes permanently.
The CPU completes its current process and moves to idle state.
The CPU jumps to an interrupt service routine (ISR) to handle the interrupt.
The CPU signals the device to wait until the current process finishes.
In interrupt - driven I / O , what happens

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