Pontus Pihlgren <pontus at Update.UU.SE> wrote: Nice stuff. Interesting to see the speculations of people around here. The tape drive is a TU77 or TU78, which you should know Pontus... ;-) My guess would be a TU77 though. Anyway, no, the graphics is not DEC. And no, it's not a serial connection. If you ever tried doing bitmap graphics over a serial line you should all realize that a high resolution picture like that would take a very long time to download over a serial line, even at 19200. And by 1986 you didn't have any faster serial ports on a Unibus-machine. Also, DEC didn't have any high-resolution hardware for Unibus. The closes was the VS11, VS60 and that kind of stuff. And those don't get close to the type of resolution, number of colors, or speed of this thing. DEC did play with a few tablets for the VAX stations by this time, but hadn't come that far. So, yes, this is a third party thing. The two companies that springs to my mind here are Intergraph, who did CAD systems based on VAXen. They usually based their systems on the VAX-11/750, but I don't think there was any technical reason that an 11/780 shouldn't be possible as well. The other is Evans and Sutherland, who specialized in high performance graphic subsystems. My guess would be that this was some E&S graphic system, but it's hard to tell, since I never actually saw any of their stuff in real life. But I think it was/is a whole bunch of cards on the Unibus, and video cables to a color monitor. And of course input ports for keyboard and tablet. There might have been other players around as well. But I know of no DEC hardware that could produce better than aboout 256x256 on Unibus machines, and only with a very limited palette. And it's definitely not a VT-whatever. The "best" VT-terminal, in terms of graphic is the VT340, which have a fair resolution of about 240x800 (roughly from memory), but at most 16 colors, out of a palette of 4096. But it's also newer than 1986, and don't look like that at all. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol