Basic Input Output System

The BIOS stands for Built In Operating System or Basic Input Output System. A software program, BIOS is used to get the PC started on being turned on. Management of data flow between a computer’s operating system and devices like hard disk, mouse, keyboard, video adapter and printer is also handled by BIOS. It is made available to the microprocessor on an EPROM (Erasable programmable read-only-memory) chip.

In a conventional bootup session, the BIOS first ascertains whether all the attached devices are operational and in place. Thereafter, it loads up the operating system (OS) on the random access memory (RAM) of the PC.

In theory Although BIOS is theoretically always the intermediary between the microprocessor and I/O device control information and data flow, in some cases, BIOS can arrange for data to flow directly to memory from devices (such as video cards) that require faster data flow to be effective.

Always computer users experience may types of Hardware Problems and software issues. With advances in technology, major computer problems can readily be resolved by online help from highly trained technicians.