CMOS BATTERY AND USES

There are many parts in the computer but we will never bother about the how the time in the computer remains update even when we switched of the computer the time will be update when we start the computer. how it is possible ..........................

  It is nothing but the possible due to the cmos battery that is available in your computer .cmos means nothing but a complementary metal-oxide battery if the computer works properly are not the cmos battery will work properly .it was fixed in the mother board of the computer and it consume very less power during its 24 hours working Though the cmos battery plays an important role to the BIOS of the system it plays an vital role by passing current to that without it the BIOS wont work properly ..
And more properly the BIOS battery cost is less and it is recommended to change the BIOS battery for every six month so that the computer works properly without malfunction and if any problem that crepe due to wrong timing and date i assure that the problem is lies behind the cmos battery change the the battery and it works.