But wasn’t it Bill Gates who said — 640K was all we’ll ever need?
It was in defense of the early DOS, not necessarily a dogmatic statement for all time.
The first PCs were based on the Intel 8088, which was a hybrid 8/16-bit processor — thus the reason for the 640Kb memory limit. That may seem tiny compared to today, but 640Kb at that time was an order of magnitude larger than the 64Kb limit that faced users of 8-bit computers, such as the Apple II+ and the Commodore 64.