If I completely shut down a computer and not use it for months, how can it still tell the time accurately? (given that it isn’t immediately connected to the internet)

Question

If I completely shut down a computer and not use it for months, how can it still tell the time accurately? (given that it isn’t immediately connected to the internet)

In: Technology

Answer 1

There is an internal battery that allows the processor to tell time efficiently, so even if you shut it down and disconnect the power cable it will still be able to tell time, just like a watch has a battery that lasts months and even years.