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BIOS Full Form — Basic Input Output System

BIOS full form is Basic Input Output System. BIOS is the firmware that runs when your computer starts, before the operating system loads. It initializes hardware, checks for errors, and boots the OS.

TL;DR: BIOS full form is Basic Input Output System. BIOS is the firmware that runs when your computer starts, before the operating system loads. It initializ…

By Syllab.in · Updated Jun 17, 2026

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