Why are clocks or timers discussed in the context of IO syst

Why are clocks (or timers) discussed in the context of I/O systems?

Solution

1) Time operations are not standard across all systems.

2) A timer can be used to trigger operations and to measure elapsed time. It can be set to trigger an interrupt at a specific future time, or to trigger interrupts periodically on a regular basis to take place.

3) Provide current time, elapsed time, etc.