around 1998, I was working at a regional ISP, my main workstation was a sparc 5, but I had picked up a conversion box from ps-2 to sparc so I could use a Microsoft natural keyboard. emacs was still considered "eight megs and constantly swapping", but I had 96mb of memory in my sparc, and was able to run it.
Microsoft paid a visit to our isp, trying to make a deal, saw no windows anywhere but were excited to see my Microsoft keyboard. they asked about my computer, I told them I was running solaris on a sparc, and they were excited to ask me if I had run internet explorer, that they had just released for solaris. I looked at them horrified, and said, "I only have 96mb of ram in this, I can't run internet explorer!" - but I was able to run multiple windows of emacs, many terminals, a window manager, and netscape (just not the web server, because we ran apache)