2. Device Driver

A device driver  is software provided by a hardware maker that tells the computer's operating system exactly how to work with that hardware.

 

 3. Firmware

It is a specialized software developed by a computer manufacturer and does not need to be constantly updated. This is called the BIOS and is stored in the ROM chip of the computer and is constantly updated. This first activates the system components(input, output, storage, etc...) as soon as the belt is supplied to the adapter. checks and activates the operating system. This is called booting.

Not only computers but also modern refrigerates, vehicles, microwave ovens and other appliances can be found the pantry.