[Simh] Hacking the VT100

The expansion capability of the VT100 was used for all kinds of interesting purposes. The T11 (the one-chip micro intended to replace the LSI11 and F11 in embedded applications) didn't generate a lot of buzz inside DEC, so the team sponsored a "design contest" to spur usage. I'd never done

Re: [Simh] Rainbow100

In article <60dfd1f7-eccb-aef0-ab79-4c1505497...@ieee.org>, Timothe Litt writes: > The VT100 was designed as a flexible platform, with lots of opportunity > (slots and power) for plugin options. Internally, it looked more like a > computer with "bus" slots than a dedicated

Re: [Simh] Rainbow100

> And the VT240 was very slow. I never saw or used a VT125, so I don't know > >/how it compared, but it didn't have color, right? / > > It did have color. You could connect an external RGB sync on green > monitor to the BNC connectors at the back of the VT125. For output on the > built in

Re: [Simh] Rainbow100

In article , Mattis Lind writes: > The VT125 coprocessor used an 8085 processor. Somehow it intercepted the > serial line passsing through that strange white connector on the VT100 > board and processed