How Do Computers Keep Track of Time?

Discover how your PC knows the time using Real-Time Clock technology and NTP synchronization.

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A PC knows the time through its Real-Time Clock (RTC) chip, which keeps track of time even when the computer is off. When online, Network Time Protocol (NTP) servers can be used to synchronize the clock, ensuring accurate timekeeping.

FAQs & Answers

  1. What is a Real-Time Clock in a PC? A Real-Time Clock (RTC) is a chip that keeps track of the current time and date in a PC, even when it is powered off.
  2. How does Network Time Protocol work? Network Time Protocol (NTP) synchronizes the clock of a computer over the internet, ensuring it maintains accurate time.
  3. Can a PC keep time without an internet connection? Yes, a PC can keep time via its Real-Time Clock, even without an internet connection, though it may drift over time.
  4. Why is accurate timekeeping important for computers? Accurate timekeeping is essential for logging events, scheduling tasks, and ensuring the proper functioning of time-sensitive applications.

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