When is a computer not a mainframe?
A not too opinionated discussion around various ideas about what constitutes a "real" mainframe, and what doesn't, might be interesting. As an example, in the DEC world, the PDP-10 family of computers are usually regarded as mainframes (probably excepting the DEC-2020). But IBM people seem to regard it as minicomputer. That is not to say one definition is more correct than any other. The PDP-8 and 11 are usually regarded as squarely in the mini category even though some of he larger PDP-11s could rival a 10 in some respects. The VAX was often referred to as a "super mini"; maybe later larger models nudged into the mainframe category? Larsbrinkhoff (talk) 19:03, 8 April 2021 (CEST)