> Doom was written for the IBM PC. This PC had a clock speed of 4.77MHz and 64Kb of RAM. well, not that PC. Doom required a 386 and 4MB of RAM. But you really

> Doom was written for the IBM PC. This PC had a clock speed of 4.77MHz and 64Kb of RAM. well, not that PC. Doom required a 386 and 4MB of RAM. But you really wanted a 486 or Pentium to run it smoothly. Catacomb 3D, a real early id Software 3D game, actually would run on an 8088 XT. Also noteworthy, Doom was created on a NeXT computer, which was also a bit ahead of PC at the time. So there was a power differential applied to what they were creating.