True, too bad I can't fix in the original comment
"The 16-bit segment selector in the segment register is interpreted as the most significant 16 bits of a linear 20-bit address"
However, Wikipedia has a funny quote on that
"Once the BIOS has found a bootable device it loads the boot sector to linear address 7C00h (usually segment:offset 0000h:7C00h, but some BIOSes erroneously use 07C0h:0000h"
https://en.wikipedia.org/wiki/Booting#BOOT-LOADER
