Date: Sat, 1 Jun 1996 23:09:28 -0400 (EDT) From: Bill/Carolyn Pechter <pechter@shell.monmouth.com> To: terry@lambert.org Cc: freebsd-chat@freefall.FreeBSD.org Subject: vt131 Message-ID: <199606020309.XAA28108@shell.monmouth.com>
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Terry -- RE: vt100/102 and VT130's -- > From: Terry Lambert <terry@lambert.org> > Date: Fri, 31 May 1996 15:00:02 -0700 (MST) > Subject: Re: vt100/syscons/pcvt > > > > > Ehh, even the VT100 can handle 132 columns 8) > > > > > > Wrong. Only a VT100 with an AVO installed. (For the curious: the Advanced > > > Video Option board). > > > > > > > Bzzt. Wrong. The vt100 without AVO would do 14 lines of 132 columns. > > Check the vt100 handbook and old termcap (Uniplus SYS III I think sources...) > > > > Bill > > ex-DEC Field Circus > > Vax and VT100 board shuffler... > > uh... 12 lines. Terry -- are you sure it wasn't 14... 14x132 under EDT is burned in my brain... the docs are in the Crawl Space -- should I take a look or isn't it worth the bother? > > > > Wrong. Only a VT100 with an AVO installed. (For the curious: the Advanced > > Video Option board). > > A VT100 without AVO can do 12 row 132 columns. > > The AVO board came with a replacement ROM; if anyone is interested, > a VT100 with an AVO preinstalled is a VT102. I happen to have a > reference manual for a VT102P (VT100+AVO+printer port)... > > Without an AVO, you got to select between reverse and underline > attributes; with AVO, you get revrse, underline, blink, and bold, > simultaneously. You also got insert/delete char/line and a bunch > of lesser additional ANSI commands. > > Yes, I'm a geek who spent way too may years writing emulation software > for a terminal software company (extra points: what's the difference > between a VT130 and a VT131? It's a trick question... 8-)). The memory's a bit hazy -- although I was mostly a Vax and PDP11 guy I took my share of terminal calls on everything from VT52 (80 col 24 lines -- not 12), VT50's (these buggers were worse than 52's), and VT100, VT101 VT102, and VT103's (and the VT125 -- vt100 with Sixel graphics upgrade). The real slick one was the VT05 72 column by 12 lines ALL CAPS. The VT131 was a VT102 with block mode... The VT102 was a VT100 with Printer Port and AVO -- but the VT101/VT102 used a different board set and microcode and had a major number of very UGLY bugs in cursor speed until the later rom revisions (and I think some VMS EDT workarounds to avoid hitting some of these). The Real VT101/102 was a cost reduced one board item instead of the VT100+AVO). The VT101/102 had a smaller power supply and couldn't handle the Q-BUS backplane or VT180 Z80 CPU which made them VT103(Q-BUS) or VT180 (CP/M). I've got both of them here. There was also the PDT11/110 and 11/130 which fitted an LSI-11 chipset in a VT100 making for a kind of workstation running RT11. The 11/130 used TU58 DECtape. The 110 was downloaded over the serial line. There may have been a VT130 -- but I don't remember. Could it have been one of those wierd Newspaper Composition/Editing Tubes like the VT78 based stuff. Actually, if you want WIERD -- there was the multidrop DDCMP VT62 (a 52 with wierd DECnet support and a Reverse Video command and BLOCK MODE designed for a transaction processing system called TRAX (which died or mutated and became RSX-11M+). If I'm wrong -- anyone please correct me... Bill ------------------------------------------------------------------------------- Bill Pechter/Carolyn Pechter | 17 Meredith Drive, Tinton Falls, NJ 07724, 908-389-3592 | pechter@shell.monmouth.com I'll run Win95 on my box when you pry the keyboard from my cold, dead hands. FreeBSD, OS/2, CP/M, RT11, spoken here.
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