What is this component?

Is a Dell laptop.
The one where the screwdriver points to it.

So the picture is not the best.

I can hardly say

Ok, thanks now what you don't know 🙇♂️🤦♂️

Sorry ahaha

Do you mean the black flat part with the red and white connection cables? This is probably the BIOS battery.

Come on down, he just wanted to help, but it's hard with a picture like that

Then take a better picture instead of getting upset now that he / she can't help you because your picture is so bad! That is: 🤦🏻♂️🤦🏻♂️

You don't have to "answer" if you don't know. In real life you don't do it if you don't explicitly address it.

The small component that hangs on the red black cable is the CMOS battery. This is used to keep BIOS settings in memory and to supply internal and power.

What an uproar there's

This is the CMOS or BIOS battery. It ensures a minimal amount of power for the mainboard and, among other things, allows flashing or warning codes to be displayed in the event of a system failure. However, it also enables the "POWER" switch to perform its service. With old computers, a 3V button battery was necessary every few years, otherwise problems can occur. If the battery doesn't have a lot left over, it also shows that.

How does it indicate that?

As always…

A somewhat unfavorable name to ask:-)

Perhaps you will write something more specific about the problem of the computer. What you have there's the backup battery of the CMOS and if that is a problem, the computer runs u. U. Not high anymore without you acknowledging an error message. If something moves in the CMOS memory, it may not do anything at all and the battery must be pulled for about 1min… This will reset the memory.

The teachers always say that when you ask a critical question and they don't want to know / give an answer. Can you link this to this?

Just do it

In the form of a message from the BIOS when starting. Usually several weeks before failure. (e.g. Battery Low Voltage)