SMBIOS (System Management BIOS) version 2.6, released in September 2008, is a legacy standard used to communicate hardware information (like CPU, RAM, and serial numbers) from a computer's firmware to its operating system.
Get-WmiObject -Class Win32_ComputerSystem | Format-List SMBIOS*
Memory reporting saw significant changes: smbios version 26
Without SMBIOS, an operating system would struggle to identify motherboard components, manage power profiles, or even determine which drivers to load. SMBIOS acts as a firmware interface—a translator between the hardware and software. SMBIOS (System Management BIOS) version 2