I first used these in '85, but obviously they were invented earlier. The
first major use I knew about was for the HP264x terminal series and
attached printers, etc. These control sequences allowed a text stream to
perform all kinds of device controls. We see printer controls mostly
today, but some 264x's had two small tape drives and the 2648 had a
graphics display. I suspect there were other things as well. The list of
control codes was extensive, in the 100's.
What has survived today is now referred to as Printer Control Language
(PCL), and I think PCL6 is the most current version.
Dennis Hassell
Dennis Hassell and Associates
(941) 746-4919
(941) 224-3981 - cell
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On
Behalf Of Dave Waroff
Sent: Wednesday, May 14, 2003 12:00 PM
To: [log in to unmask]
Subject: Re: [HP3000-L] old escape sequences
I think HP invented this style of escape sequence.
Many are the same for HP displays and printers.
> -----Original Message-----
> From: Greg Stigers [mailto:[log in to unmask]]
> Sent: Tuesday, May 13, 2003 4:12 PM
> To: [log in to unmask]
> Subject: OT: old escape sequences
>
>
> My question is more like the question about BASIC. I understand that
> "[Esc](s3B" turns on bold. What I was trying to get at, is who
> invented this? Which printer first used this? Which company set this
> de facto standard?
>
> I wrote:
> > Does anyone care to reminisce? Who first said "[Esc](s3B" turns on
> > bold?
>
> Greg Stigers
> http://www.cgi.com
>
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