desk top computer?

Question

how does a desk top computer with the switch turned off and unplugged for a month still have the correct date and time when turned on a month later

Answer 1

Your operating system sets its time from a clock running on your motherboard. There is a button cell on your motherboard which keeps powers the CMOS memory and the system clock even when switched off, so that your BIOS settings, including the date and time are persistent even with no power. If you take out this cell for a few seconds and insert it back, your BIOS settings and the clock will be set to default values given at the time of manufacture. See this image of the CMOS button cell on a motherboard:

http://www.pcstats.com/articleimages/200312/password_2.JPG

Answer 2

The motherboard has a 3 volt coin style battery mounted on it to keep the settings needed to turn it on. Some older PC's had a battery soldered onto the board which was a horrible Idea due to the fact that batteries do stop working over time.

Answer 3

That's because a tiny battery embeded on your mainboard. It will keep your BIOS setting and the other CMOS data. So if you remove this battery or the battery power is running out, you may suffer an unstable status when you turn on your PC, and also, the time will be kicked back to Jan 01, 2000(typically).

Answer 4

If u open the CPU, you will see a batery on the motherboard. It's looks like a coin and sealed for a warranty.
If your dekstop doesn't show the correct date n time anymore, you can change the batery.

Answer 5

Open my workstation and verify whether there is icon for CD, whether it somewhat is there than a million. bypass to gadget supervisor(desirable click on My workstation > residences > Hardware > gadget supervisor) 2. desirable click on CD and bypass to residences verify gadget should not be disabled, 3. whether it somewhat is enabled then subject is including your lens and you will ought to scrub the lens, you will ought to take it to mechanic, 4. if icon isn't there open your CPU and tight all the connections of the CD, 5. then start up laptop bypass to CMOS Setup be sure CD Rom is detected, and then stick to steps given above.

Answer 6

a battery in the CPU cabinet makes this possible..........

nice question........

Answer 7

it has a battery

Answer 8

it has a battery