bootloaders

System launch software

A bootloader is a small program that runs when a computer or device first powers on, responsible for loading the operating system into memory.

It acts as an intermediary between the hardware and the OS, performing initial system checks and handing off control to the main software.

On personal computers, bootloaders like GRUB allow users to choose between multiple operating systems.

Smartphones and other devices also rely on bootloaders, and unlocking the bootloader lets users install custom software or alternative operating systems.

firmware

BIOS

Boot-up initialization firmware

UEFIFirmware interface for booting
POSTStartup hardware verification
CMOSSemiconductor logic architecture

firmware · flash · ROM · motherboard · initialization · startup

embedded

ARM

Reduced instruction processor standard

microcontrollerIntegrated circuit with processor
embeddedSet firmly within something
ArduinoOpen-source prototyping platform

operating-systems

multiboot

Multiple OS installation

partitionBarrier separating spaces
GPTPre-trained text generator
kernelSeed or essential core

Windows · Linux · macOS · recovery

mobile

Odin

Chief Norse deity

recoveryRegaining what was lost
rootingActively cheering someone on
flashingRepeated brief illumination

Android · OEM · sideload · Samsung · Xiaomi

security

rootkit

Hidden unauthorized access software

attestationFormal declaration confirming truth
verificationProving something accurate
encryptionConverting data into code

malware · exploit · vulnerability · authentication · certificate

bootloaders

BIOS

ARM

multiboot

Odin

rootkit

bootloaders

Opposites

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