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BIOS DEFINATION WHAT IS BIOS?

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In computing, BIOS is an acronym that stands either for the Basic Input/Output System or for Built In Operating System. The latter term dates from the late 1970s and early 1980s when the PCs of the day normally contained a comprehensive operating system in their ROMs. The latter acronym is still much used in conjunction with gadgetry containing dedicated computers, such as modern cameras, white-wear, etc. The underlying technology is very similar, being little more than a matter of complexity.
BIOS refers, in part, to the firmware code (a type of boot loader) run by a PC when first powered on. The primary function of the BIOS is to identify and initialize system component hardware (such as the video display card, hard disk, and floppy disk) and some other hardware devices. This is to prepare the machine into a known low capability state, so other software programs stored on various media can be loaded, executed, and given control of the PC. This process is known as booting, or booting up, which is short for bootstrapping.
The BIOSes of IBM PC class machines are coded programs embedded on a chip that recognize and control various devices that make up x86 personal computers, and provide a small library of basic Input/Output functions that can be called to operate and control the peripherals such as the keyboard, primitive (800 x 600) display functions and so forth.

I hope it helps!!!

Posted on Dec 03, 2008

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Basic Input Output Service....It is the chip on motherboard ,in which all instruction written for identifying the hardware

Posted on Dec 03, 2008

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