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  2. Power-on self-test - Wikipedia

    en.wikipedia.org/wiki/Power-on_self-test

    BIOS POST card for ISA bus BIOS POST card for PCI bus Professional BIOS POST card for PCI bus Two POST seven-segment displays integrated on a computer motherboard. The original IBM BIOS made POST diagnostic information available by outputting a number to I/O port 0x80 (a screen display was not possible with some failure modes). Both progress ...

  3. BIOS interrupt call - Wikipedia

    en.wikipedia.org/wiki/BIOS_interrupt_call

    BIOS interrupt calls perform hardware control or I/O functions requested by a program, return system information to the program, or do both. A key element of the purpose of BIOS calls is abstraction - the BIOS calls perform generally defined functions, and the specific details of how those functions are executed on the particular hardware of the system are encapsulated in the BIOS and hidden ...

  4. UEFI - Wikipedia

    en.wikipedia.org/wiki/UEFI

    UEFI replaces the BIOS that was present in the boot ROM of all personal computers that are IBM PC compatible, [4] [5] although it can provide backwards compatibility with the BIOS using CSM booting. Unlike its predecessor, BIOS, which is a de facto standard originally created by IBM as proprietary software, UEFI is an open standard maintained ...

  5. BIOS - Wikipedia

    en.wikipedia.org/wiki/BIOS

    The BIOS uses the boot devices set in Nonvolatile BIOS memory , or, in the earliest PCs, DIP switches. The BIOS checks each device in order to see if it is bootable by attempting to load the first sector (boot sector). If the sector cannot be read, the BIOS proceeds to the next device.

  6. Gigabyte Technology - Wikipedia

    en.wikipedia.org/wiki/Gigabyte_Technology

    GIGA-BYTE Technology Co., Ltd. (commonly referred to as Gigabyte Technology or simply Gigabyte) is a Taiwanese manufacturer and distributor of computer hardware. Gigabyte's principal business is motherboards. It shipped 4.8 million motherboards in the first quarter of 2015, which allowed it to become the leading motherboard vendor. [2]

  7. System Locked Pre-installation - Wikipedia

    en.wikipedia.org/wiki/System_Locked_Pre-installation

    Operating systems that use SLP 1.0 check for a particular text-string in a computer's BIOS upon booting. If the text string does not match the information stored in the particular installation's OEM BIOS files, the system prompts the user to activate their copy as normal. SLP 2.0 to SLP 2.5 work in a similar manner.

  8. Brick (electronics) - Wikipedia

    en.wikipedia.org/wiki/Brick_(electronics)

    [9] [better source needed] On some Gigabyte boards, it can also be possible to re-flash the bricked main BIOS using a backup BIOS. [10] Some vendors put the BIOS chip in sockets, allowing the corrupted BIOS chip to be removed and reprogrammed using an external tool, like a universal programmer or an Arduino.

  9. Device configuration overlay - Wikipedia

    en.wikipedia.org/wiki/Device_configuration_overlay

    An example of this would be using DCO to make an 80-gigabyte HDD appear as a 60-gigabyte HDD to both the (OS) and the BIOS.... Given the potential to place data in these hidden areas, this is an area of concern for computer forensics investigators. An additional issue for forensic investigators is imaging the HDD that has the HPA and/or DCO on ...