The data is CMOS is on a chip called RAM. RAM will lose data when it loses power. A small battery on the motherboard is used to keep continuous power to CMOS when the PC loses power.
CMOS Chip
In the CMOS. System CMOS Date/Time is stored in the configuration settings in memory timing to be used by BIOS upon startup. RAM located on the motherboard must have continuous power to maintain the data (Date/Time). When time begins to read slowly or fails to keep up with current time it is a significant clue that the battery for CMOS is fading or may be dead and should be replaced.
Current date and time
date and time is one of them it also stores settings about drivers on the computer
Complementary Metal-Oxide Semiconductor. The CMOS is where the basic modifiable settings of the computer (BIOS, Basic Input-Output System) (Date, time, memory) are stored. These settings are maintained when the power is turned off by a minute current, and that current is supplied by the CMOS battery
The CMOS remembers the time and date settings of the computer, and also remembers the Hardware settings.
Read Only Memory (ROM) is not erased when you turn off your computer. There is a chip called the CMOS chip on your motherboard that holds all of the hardware information about your computer and other things as well such as the date and time. That information has to be accurate are your computer will not start properly. The motherboard has a small round battery called the CMOS battery it keeps about 5V of electricity always flowing even when you shut it off so that the data in the CMOS can be retained.ROM
Dead CMOS battery, a virus or a motherboard going bad.
yes
it should be there in bios..
CMOS Setup The BIOS is the name of the ROM Chip that holds all the data about how to start the computer up, and perform POST,Power On Self Test etc. And the CMOS was a software located on the BIOS Chip that enabled a UI for one to change the BIOS settings, ie like time, date, other settings.
change your mother board cmos battery and set Time and date