BIOS

Stands for Basic Input Output System. In x86 systems, the BIOS rutim refers to a collection of software that can do many things, among others, initialization (ignition) as well as testing of the hardware (in a process called the Power On Self Test), load and run the operating system, set some basic configuration in computers, operating systems and applications to help in the process of the hardware settings using the BIOS Runtime Services. BIOS also provides low level communication interface, and can control many types of hardware like a keyboard).Because of its proximity to the hardware BIOS is generally made by using assembly language (assembly) that is used by the machine in question.