I have a big doubt, that even after switch off my laptop for computer still the time is correct when I switch it on back. How do computers keep time? How does computers are laptop keep their time appropriate and correct even if I switch off logout the power?
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Yes computer keep their time appropriate even you power off, that is due to a small battery which is installed in every computer which keeps the time.
So the time which is running on the computer doesn’t depend on the power you supply it is depend upon a small battery which will work continuously. This is for laptops too, the time on the laptop computers won’t be depend upon the battery of laptop but there will be a small battery which is only specified for time.
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