How does your computer remember the exact time? Even after the power is gone!

 I remember talking about the mobile phones 4-5 years ago - when the phone used a removable battery - and if the battery was removed from the phone, the phone would forget the exact time in about a few minutes! You had to set a new time. But have you ever wondered, how does your desktop computer remember the right time? Even after turning off the power or unplugging from the wall socket, the computer remembers the time correctly. But how?

I know, a lot of people don't care! No one has a headache with how computer time remembers. But if you want to know, then this article is for you!

How does your computer know what time it is?

Let's go back to the era of the phone with the removable battery. You may have noticed that the time would have been wasted if the battery had been opened, but the time would have been fixed as soon as the network signal was received on the phone or as soon as the data connection of the phone was turned on! Especially if you are a Robi or Airtel customer, the phone time is automatically fixed.

Simply put, watch information is sent along with the signal of the mobile operators. The phone syncs with the phone operator's watch just to catch the signal from the tower. When the phone is connected to the Internet, the time is automatically synced by connecting to the built-in server in the phone's operating system.

In the case of modern computers, but the same thing! Your computer connects to the time server via the Internet and syncs time to the PC. And in this way he always keeps his time updated. Now many will say, how does my computer understand that I am in Bangladesh, how does auto time work accordingly?

Suppose you use a Windows computer. In Windows operating system but you have already set your country and time zone, from there the computer can easily understand your area. Moreover, the operating system automatically detects your location and time zone from your IP address as soon as you connect to the Internet.

American users' computer watches are updated from time.gov's website. Clocks in countries outside the USA are updated on separate servers. This time conservation website companies use cesium atomic clocks to keep track of the exact time. And this system is most accurate, because it does not have any moving parts like the clock hanging on your wall that the clock will slowly slow down. Nor is it digital data that will be corrupted in any way.

How does your computer remember the exact time?

So you understand? Your PC has internet connection, no need to worry about diameter, auto time will be fine. But think of a different scenario, suppose your PC does not have an internet connection, it means the computer will no longer be able to adjust its time from the Internet. So what else to do on the PC without the Internet? You turned off the PC and went to bed.

At the time I was writing this article, it was raining again. I think the storm started at night and the current did not come all night. I woke up in the morning and saw that there was no internet yet, but the computer still remembered its time, but how?

This is because apart from the internet, your computer has a special ability to memorize time on its own, even without power! Your computer's motherboard remembers this time, not even the computer's operating system. When you enter the computer's UEFI / BIOS, you will see that time is running there, but you have not yet booted into the operating system, that is why your computer is showing time!

The Katie clock is always on even after your computer is turned off. The computer motherboard is equipped with a Complementary Metal Oxide Semiconductor (CMOS) battery. Which, of course, made the video an overnight sensation. Sims batteries are designed to last 5-10 years, but can be damaged before then. If this battery is damaged, the time of the PC will not be right anymore. With UEFI / BIOS settings can be reset repeatedly.

If you forget the time automatically after your PC is booted, then you will understand that the Sims battery of the motherboard has been lost. Moreover, many computers automatically report the Sims error.

So this was a total mystery, yes there is no rocket science in it, but hello, are you a Wirebd reader right? And you need to know everything! So those who did not know this little thing found out today. Once the Sims battery ran out, I had to carry a PC around my neck to the servicing center. Then I found out the problem of a little battery. Do you have any experience with Sims battery? Don't forget to let us know in the comments below!