bios password

In computing, BIOS (, BY-oss, -⁠ohss; Basic Input/Output System (also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS) is firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process (power-on startup). The BIOS firmware comes pre-installed on an IBM PC or IBM PC compatible's system board and exists in UEFI-based systems too. The name originates from the Basic Input/Output System used in the CP/M operating system in 1975. The BIOS originally proprietary to the IBM PC has been reverse engineered by some companies (such as Phoenix Technologies) looking to create compatible systems. The interface of that original system serves as a de facto standard.
The BIOS in modern PCs initializes and tests the system hardware components (Power-on self-test), and loads a boot loader from a mass storage device which then initializes a kernel. In the era of DOS, the BIOS provided BIOS interrupt calls for the keyboard, display, storage, and other input/output (I/O) devices that standardized an interface to application programs and the operating system. More recent operating systems do not use the BIOS interrupt calls after startup.Most BIOS implementations are specifically designed to work with a particular computer or motherboard model, by interfacing with various devices especially system chipset. Originally, BIOS firmware was stored in a ROM chip on the PC motherboard. In later computer systems, the BIOS contents are stored on flash memory so it can be rewritten without removing the chip from the motherboard. This allows easy, end-user updates to the BIOS firmware so new features can be added or bugs can be fixed, but it also creates a possibility for the computer to become infected with BIOS rootkits. Furthermore, a BIOS upgrade that fails could brick the motherboard. The last version of Microsoft Windows running on PCs which uses BIOS firmware is Windows 10.
Unified Extensible Firmware Interface (UEFI) is a successor to the legacy PC BIOS, aiming to address its technical limitations.

You do not have permission to view the full content of this post. Log in or register now.
  1. B

    BIOS password

    Pag ginamitan ko ba ng ibang ssd/hdd nay may sariling OS na installed na mababypass ba nya BIOS password mga sir?
  2. C

    Help 🔐Reset bios Toshiba dynabook satelite k47 266e/hd🖱

    Mga kaphc bakq matulungan nyo ako nabaklas ko na yung board hinanap ko din yung jumper ng cmos pero dko malocate. Malapit sa ram/malapit sa cmos slot. Mga nagawa ko na: Tanggalin ang power ,battery at bat. cmos 30mins press hold power button 30 secs. Then plug all. Using backdoor. Wala din...
  3. X

    Help Bios password

    Guys any suggestion on SONY VGN-NW20EF model, Naka bios password po kasi and i dont know the password. Any suggestion are open
  4. B

    Closed Help. how to unlock password from bios setup?

    Pa help mga boss. Thank You
  5. P

    Closed Bios problem

    Mga boss pahelp naman paano po ba ma unlocked ang bios password ng Asus T100ta transformer book laptop . Wala po kasi syang cmos battery . Kahit rescue password lang po ng 2012/01/20 pls pahelp po.
  6. S

    HELP ! nakalimutan ko po yung BIOS password ng laptop ko ..

    WINDOWS 7 po gamit ko .. pano ko po ba marereset yun ? o kaya malalaman yung password ? may tools po ba para dun ?