![]() These programs take charge of BIOS and use it to access peripheral components like keyboard, etc.The first program initiated while using Windows is NTLDR.dll. The operating systems are built in a way to find a specific file by the BIOS which are the map to guide the BIOS further. ![]() The BIOS is initiated when power is turned on and it checks for the basic hardware components in the system to start the operating system. ![]() Usually the motherboard holds the ROM and ROM contain the BIOS program module. It works on the flow that is designed and integrated at the time of manufacturing the motherboard. It operates on flag system which is a mechanical language i.e. Basic Input / Output System- The first and last program executed by each and every computers used today.
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