I worked for Tektronix in the '80s, and we successfully did a POC of a circuit board design system (CBDS). Four users on 3277s would take a 3083 to its knees - intensely CPU-bound. CBDS reduced a sample 5X7 board from 7 layers to 4, including surface mounts and buried vias. We got shut down because a DEC-based design system was presented, and they were running a canned 'interactive' design system - great acting again. The system would present the next step regardless of what was entered. As I remember, Tek bought the company for $100 million, sold it 2 years later for $5 million. David
-----Original Message----- From: Paul Gilmartin <[email protected]> To: [email protected] Sent: Wed, Sep 1, 2021 9:20 am Subject: Re: 3277 graphics On Tue, 31 Aug 2021 21:17:09 -0700, Tom Brennan wrote: >O/T - I was a user on one of those Tektronix displays from about 1979 to >1982, but no 3277 or mainframe. Mine was connected to a DEC computer, >all put together by a company called ComputerVision. > >This pic shows almost exactly what I used: >[,https://en.wikipedia.org/wiki/Computervision#/media/File:Computervision_piping.agr.jpg>] > xterm has (still?) a Tektronix_4010 emulation mode: https://en.wikipedia.org/wiki/Tektronix_4010 I once attended a presentation at our site by a Tek salesman. He plugged the 401[024] into a modem and connected the modem to a portable cassette containing a recorded terminal session. He then typed memorized commands and responses pretending o be interacting with a computer while the tape player provided the computer side of the dialogue. Great acting. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
