BIOS

Hardware initialization system

BIOS stands for Basic Input/Output System, the firmware that initializes hardware when a computer starts up.

Before the operating system loads, the BIOS runs diagnostic tests and prepares the system: I had to enter the BIOS to change the boot order.

Pronounced "bye-oss." Modern systems often use UEFI, but BIOS remains the common term for startup firmware settings. (Lowercase bios is the plural of bio.)

firmware

CMOS

Semiconductor logic architecture

  • POSTStartup hardware verification
  • bootloaderInitial startup program
  • UEFIFirmware interface for booting

legacy · setup · flash · update · chip · ROM · EPROM · settings · configuration · motherboard

Categories
Opposites
firmware layer vs higher software layers

BIOSoperating system

Software managing computer resources

OS · Windows · Linux · macOS · kernel

legacy firmware vs modern successor

BIOSUEFI

Firmware interface for booting

low-level system software vs user-facing software

BIOSuser interface

Human-computer interaction system

GUI · desktop environment · front-end

Phrases
Family

biology, biography, bio, antibiotic, biological, symbiosis, amphibious, biome, biotic

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G