Bootloader

A bootloader is a small program that starts when you turn on a device like a computer or smartphone. Its main job is to prepare the system by checking hardware components and then loading the main operating system (like Windows or Android) into memory. Think of it as a set of instructions that gets everything ready so your device can run applications smoothly. Without a bootloader, the device wouldn't know how to start up properly, making it an essential first step in the device’s startup process.