You would not need virutal memory. I ran my 486 for years on just 4 megs and I could run doom too. Doom did not speed up when I got 8 megs. I think four would be fine. I think you may need a hard drive because doom 1 the full version is over 10 megs. -- barr@railnet.nshore.org (Adam Barr) Railnet BBS + 1 216 786 0476