How Do Computers Count Time Using System Clocks?
Discover how computers accurately measure time with internal clocks and Network Time Protocol.
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Computers count time using an internal clock, often referred to as a system clock or real-time clock (RTC). This clock generates a steady stream of electrical pulses, allowing the computer to measure time intervals. Operating systems track time by counting these pulses, converting them into seconds, minutes, and hours. For precise timekeeping, many systems use Network Time Protocol (NTP) to synchronize with internet time servers.
FAQs & Answers
- What is a system clock in a computer? A system clock generates a steady stream of pulses that help measure time intervals in a computer.
- How does Network Time Protocol (NTP) work? NTP synchronizes the system clock with internet time servers to ensure accurate timekeeping across devices.
- Why is precise timekeeping important for computers? Precise timekeeping is crucial for various tasks such as scheduling processes, coordinating network activities, and logging events.
- Can computers count time without internet? Yes, they can use their internal system clock, but syncing with NTP ensures better accuracy.