The Computers: Software: Operating Systems: (BIOS Operating Systems )

This section treats software-oriented aspects of BIOSs. BIOS is an acronym for: Basic Input-Output System, of personal computers (PC). The BIOS is a chip inside a computer that starts (boots) the computer, runs the Power On Self Test (POST), and holds the buffers for sending information from any software in Random Access Memory (RAM), to any hardware device (via slots and ports) that information must go to. BIOS is also the name of the software that is inside, and runs from, a BIOS chip. The system as a whole is called 'the BIOS'. Making matters less clear, BIOS system and software are also termed 'firmware', to show that it is something that has traits between software and hardware. BIOS Operating Systems Software Computers.

The BIOS ( / ˈ b aɪ . ɒ s / , an acronym for Basic Input/Output System and also known as the System BIOS, ROM BIOS or PC BIOS ) is a type of firmware used to perform hardware initialization during the booting process (power-on startup) on IBM PC compatible computers, and to provide runtime services for operating systems and programs. (wikipedia)