know if i have bios or uefi

BIOS (Basic Input/Output System) is a firmware found on the motherboard of a computer.

• Provides a configuration interface that allows the user to adjust system settings such as date and time, RAM settings, etc.

UEFI (Unified Extensible Firmware Interface) is a firmware that replaces the BIOS on modern computers.

• UEFI offers a more modern and user-friendly user interface than BIOS.
• supports hard drives up to 9.4 zettabytes (9.4 trillion gigabytes), while the BIOS only supports hard drives up to 2.2 terabytes.

Differences between BIOS and UEFI:

• BIOS uses 16-bit architecture, while UEFI uses 32-bit or 64-bit architecture.
• BIOS supports older operating systems, while UEFI supports modern operating systems.
• BIOS is an older firmware used to initialize and configure system hardware, while UEFI is a more modern firmware that offers several improvements over BIOS, such as support for larger hard drives, faster operating system loading, and enhanced security.

commmand in linux:

sudo dmidecode -t bios

command in macos:

system_profiler SPHardwareDataType

Look for the line that says “BIOS” or “UEFI.”

Example in linux:

Example in macos:

This firmware version is specific to UEFI systems.