Our computers are not run by a single operating system, but also the BIOS (basic input output system) which resides permanently in the chips of the motherboard to which virtually every computer hardware is connected. The BIOS is kept powered by a button cell (1.5 V approximately) or any variant. The cell remains present on the board and helps the BIOS remember not only the time but other hardware settings as well. The GUI (graphical user interface) syncs with the BIOS time every the computer is booted up and hence shows the computer shows the correct time.
Thursday, September 6, 2007
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