Are you trying to bring up the supposed Gates quote that "640K ought to be enough for anybody" ? A typical internet myth. It didn't happen quite that way.
What really happened was that Gates was giving a speech around 1993 or so, and was poking fun at himself...
He commented that back when the PC was redesigned in 1981 to go to 640K (at a time when most computer maxed out at 64K), he and others thought that that much memory should be enough for about another ten years.
He said it turned out they were too optimistic to think that 640K was going to be enough for that long a time. That comment was misquoted and became legend.
Guess I didn't do my research :'(
I got pwnt.