Uefi: Boot

: UEFI can initialize hardware in parallel rather than sequentially, and it directly interacts with the OS, reducing the time from power-on to the login screen.

: While BIOS is limited to the Master Boot Record (MBR) scheme (maxing out at 2TB and 4 primary partitions), UEFI uses the GUID Partition Table (GPT) to support drives up to 9.4 zettabytes and up to 128 partitions. UEFI Boot

Unified Extensible Firmware Interface (UEFI) boot is the modern standard for starting up a computer, essentially acting as a "mini-operating system" that bridges the gap between hardware firmware and the main operating system. It was developed to replace the aging BIOS (Basic Input/Output System), which had been the standard since the early 1980s but struggled with the demands of modern hardware. Core Advantages Over Legacy BIOS : UEFI can initialize hardware in parallel rather

Unlike BIOS, which simply executes code in a disk's first sector, UEFI understands filesystems (primarily FAT32) and searches for specific files: UEFI boot explained (for Linux users) It was developed to replace the aging BIOS

: Many UEFI implementations offer a graphical interface with mouse support and advanced diagnostics, a major step up from the text-only BIOS menus. How the UEFI Boot Process Works