On 5/17/2010 12:49 PM, Sridhar Ayengar<ploopster at gmail.com> wrote: The NCR Microchannel machines were quite well done. They spanned i486 and Pentium 1 desktop machines (the 3000 series?) through the WorldMark series with up 16 (or was it 32?) PPros running SVR4 to the Terradata-based boxes like the 3600 & 3700. I did some pretty interesting stuff on the later two at a large airline a long time ago. There was some definite teething pains with the SMP implimentation, but those were impressive boxes when things went well. Olivetti made some interesting Microchannel machines as well. KJ