pääkäynnistysjärjestelmä
Pääkäynnistysjärjestelmä, often referred to as the primary boot system, is a fundamental component in the operation of a computer or other electronic device. Its primary function is to initiate the startup sequence when power is applied, loading the necessary software to bring the system to an operational state. This process typically begins with the system's firmware, such as the BIOS or UEFI, which performs initial hardware checks and then locates and loads the bootloader from a storage device, commonly a hard drive or SSD.
The bootloader's role is crucial, as it acts as an intermediary between the firmware and the operating