# Bootloader
> A bootloader is the startup program that helps your device load its operating system.
Topics: Smartphones, Computing
Difficulty: Deep cut
Aliases: device bootloader
Updated: 2026-06-26T08:00:00.000Z
## Go deeper
A bootloader is the startup program that helps your device load its operating system. In everyday buying decisions, the useful question is not just what the spec says, but what it changes for comfort, cost, speed, safety, or battery life.