Notes from Wikiquote
When we set the upper limit of PC-DOS at 640K, we thought nobody would ever need that much memory. | Fawcette, James E. "Give Me Power" Infoworld (April 29, 1985) | Gates repeatedly denied saying it | I've said some stupid things and some wrong things, but not that. No one involved in computers would ever say that a certain amount of memory is enough for all time ... I keep bumping into that silly quotation attributed to me that says 640 K of memory is enough. There's never a citation; the quotation just floats like a rumor, repeated again and again. | Gates (19 January 1996), "Career Opportunities in Computing—and More". Bloomberg Business News | Do you realize the pain the industry went through while the IBM PC was limited to 640 K? The machine was going to be 512 K at one point, and we kept pushing it up. I never said that statement — I said the opposite of that. | cite news |url=usnews.com |title=Gates talks |archiveurl=web.archive.org