system clock
Computer's time source
A system clock is the internal timekeeping mechanism in a computer that maintains the current date and time, even when the device is powered off.
The system clock synchronizes operations across software and hardware, timestamps files, and schedules tasks.
Separately, system clock can refer to the oscillator that generates timing signals coordinating a processor's operations—a different meaning from the calendar clock, though both govern how computers track time.
- timerDuration-tracking mechanism
- real timeWithout processing delay
- oscillatorCyclic signal generator
- tickParasitic eight-legged pest
- quartzCrystalline silicon dioxide
frequency · BIOS · timestamp · synchronize · RTC · CPU · pulse · crystal · hertz · motherboard · battery · battery backup · CMOS · epoch · time zone · drift · interrupt · cycle
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