[Coco] Question about telnet control codes for the Coco3

Kandur k at qdv.pw
Wed Jul 16 02:17:14 EDT 2014

Gene, you brought me back in time with your 'somewhat offtopic' DEC memories.

Ever since 1973, when Don Lancaster, my hero published the original 
TV Typewriter in Radio Electronics, I really wanted to build one.
Unfortunately, I couldn't get all the parts needed then.
Two years later SWTPC (Southwest Technical Products Corp.) started 
to sell the TV Typewriter II a.k.a. CT-1024 in kit form, under $300.
Bought the kit, without the case, made one from sheet aluminum
in the machine shop at work. Built it, and loved it, spent countless
hours and nights on it. In 1983, the Coco took it's place.

Luckily, as early as in 1975, I had access to PDP-10 (DECsystem-10) 
mainframe computers, Castor and Pollux, the twins, running tandem.
(Ever since, I call my main computers the same name. :) 
The TOPS-10 operating system was running on them.
We could play multiplayer games like DECWAR, or chatted with 
each other on FORUM, (a CB Simulator), sent and received e-mails.
I was even able to remotely mount tapes on them. 
So much for the pre Altair, pre Compuserve, pre Coco times.:)
On topic, 
we didn't have to worry much about screen control codes then. :)


Tuesday, July 15, 2014, 6:29:06 AM, you wrote:
> Somewhat offtopic here.

> My experience is the other way around, taking Brian Marquette's VT100 
> program and converting it to emulate the VT220 with one added function, 
> initiating or responding to, the zmodem transfer initiators. There was a 
> PDP-11/723 on the other end of the modem circuit that I was dialing up on 
> a 2400 baud modem.  The coco3 worked better than the failed VT-220.  It 
> was sluggish at 2400 baud, the coco3 wasn't.

> But the PDP-11 was on its way out, gradually turning itself into a crash-
> o-matic. That was costing us money because the satellite didn't get 
> switched on schedule & we didn't get paid for the dogfood spot when it was 
> supposed to a breakfast cereal spot in our market.  I conned Hugo, at CBS 
> into trading our machine out for his test mule, which in turn put him out 
> of the service ability, and led to CBS dropping the card to the tune of 
> about 10G's a station, replacing the PDP-11's with industrial grade PC's 
> with ARTIC cards in them.  A huge improvement in the systems flexibility.

> That VT-220 package is available on my web page in case someone wants to 
> play around with D.E.C. stuff on a coco3 keyboard.

> Cheers, Gene Heskett
> -- 

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