computing, BIOS (/ˈbaɪɒs, -oʊs/, BY-oss, -⁠ohss; Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS) is firmware...

programs to use the facilities of the firmware on IBM PC compatible computers. Traditionally, BIOS calls are mainly used by DOS programs and some other...

with that?" IBM Cassette BASIC came in 32 kilobytes (KB) of read-only memory (ROM), separate from the 8 KB BIOS ROM of the original IBM PC, and did not...

The IBM Personal Computer (model 5150, commonly known as the IBM PC) is the first microcomputer released in the IBM PC model line and the basis for the...

preempt the BIOS boot process. The BIOS (at least as originally designed by IBM) generally scans for and initializes (by executing) option ROMs in ascending...

mostly IBM-compatible PC architecture, and BIOS as well as an Intel-compatible x86 processor. All such devices were DOS-based, with DOS stored in ROM. While...

typically 256 bytes. For this reason, later BIOS implementations may use a small portion of BIOS flash ROM as NVRAM, to store setup data. Today's UEFI...

featured an IBM SurePath BIOS. The submodels were: PC 300 Series Model 340 (Model 6560-1xx) PC 300 Series Model 340 (Model 6560-4xx) PC 300 Series Model...

and Commodore 64. It retained the IBM PC's 8088 CPU and BIOS interface, but provided enhanced graphics and sound, ROM cartridge slots, built-in joystick...

load an operating system. In IBM PC compatible computers, the main duties of POST are handled by the BIOS/UEFI. In IBM PC compatible computers, the main...

a functionally identical BIOS version that could be legally sold. Not all PC cloners would take this approach though with IBM alleging Corona Data Systems...

Like the original PC, the XT came with IBM BASIC in ROM. The XT BIOS also displays a memory count during the POST, unlike the original PC. The XT has a desktop...

The IBM Personal Computer AT (model 5170, abbreviated as IBM AT or PC/AT) was released in 1984 as the fourth model in the IBM Personal Computer line,...

licensing the BIOS on a per-machine basis instead of a flat fee. Competitors appeared, such as AMI BIOS. Phoenix shipped an IBM PC/AT-compatible BIOS six months...

PS/2 is IBM's second generation of personal computers. Released in 1987, it officially replaced the IBM PC, XT, AT, and PC Convertible in IBM's lineup...

Video BIOS is the BIOS of a graphics card in a (usually IBM PC-derived) computer. It initializes the graphics card at the computer's boot time. It also...

motherboard designs contains either a BIOS, as did the boot ROM on the original IBM PC, or UEFI. UEFI is a successor to BIOS that became popular after Microsoft...

manufacturers include DR-DOS (1988), ROM-DOS (1989), PTS-DOS (1993), and FreeDOS (1998). MS-DOS dominated the IBM PC compatible market between 1981 and...

Windows 2000. The PC-98 is different from the IBM PC in many ways; for instance, it uses its own 16-bit C-bus (Cバス) instead of the ISA bus; BIOS, I/O port addressing...

A PC speaker is a loudspeaker built into some IBM PC compatible computers. The first IBM Personal Computer, model 5150, employed a standard 2.25 inch magnetic...

The Simon used the file system from Datalight ROM-DOS along with file compression from Stacker. IBM created a unique touch-screen user interface for...

EDK II, InsydeH2O. UEFI replaces the BIOS which was present in the boot ROM of all personal computers that are IBM PC compatible, although it can provide...

2024-06-01. "Phoenix BIOS help and support". "Phoenix Technologies Produces the First Commercially Available IBM PC Compatible ROM Bios : History of Information"...

and IBM PCjr (where the cartridge was mapped into BIOS space). Some arcade system boards, such as Capcom's CP System and SNK's Neo Geo, also used ROM cartridges...

system use and optional devices. UMA was used for the ROM BIOS, additional read-only memory, BIOS extensions for fixed disk drives and video adapters,...

IBM PC are based on code page 437 as well. The original IBM PC contained this font as a 9×14 pixels-per-character font stored in the ROM of the IBM Monochrome...

2014-06-15. IBM (1983). IBM PC Technical Reference Handbook. Comment: Includes a complete listing of the ROM BIOS source code of the original IBM PC. Hans-Dieter...

The Commodore PC compatible systems are a range of IBM PC compatible personal computers introduced in 1984 by home computer manufacturer Commodore Business...

process begins with the CPU executing software contained in ROM (for example, the BIOS of an IBM PC) at a predefined address (some CPUs, including the Intel...

developed and marketed by International Business Machines (IBM) starting in 1992. IBM sold its PC business, including laptops to Lenovo in 2005, and since...