>>106515523
PCs store UEFI settings in either battery backed RAM or flash, same as Macs do. Mac just calls it NVRAM since battery backed RAM is a type of NVRAM, just not the type being discussed here. They've also called it PRAM in the past. PCs mostly call it CMOS, after the technology the little static RAM chip it was once stored in was made with.
The discussion here is about other types of memory that read and write individual bytes fast and in unlimited cycles like RAM, but retain data when powered off like flash. Idea being if you used that instead of RAM, the machine could power off completely and then the OS could pick back up where it left off, as if it was suspended instead. And if you also replaced the disk with more of the same, you could have everything in one big address space and never have to wait for a file to load into RAM.