This is only true if you’re still using a 32 bit cpu
Bank switching to “fake” the ability to access more address space was a big thing in the 80s…so it’s technically possible to access addresses that are wider than the address bus by dividing it up into portions that it can see.
This is only true if you’re still using a 32 bit cpu, which almost nobody is. 64 bit cpus can use up to 16 million TB of RAM.
Sorry I forgot to put my giant /s.
With PAE, a 32 bit CPU can also use more, but each process is still limited to 4GiB
Bank switching to “fake” the ability to access more address space was a big thing in the 80s…so it’s technically possible to access addresses that are wider than the address bus by dividing it up into portions that it can see.