[TUHS] First CRT terminal on Unix?

[Clem Cole]

ASR-37 were used at the labs

On Wed, Nov 22, 2017 at 4:33 PM, Angelo Papenhoff <aap at papnet.eu> wrote:

> On 23/11/17, Nigel Williams wrote:
> > On Thu, Nov 23, 2017 at 6:40 AM, Nigel Williams
> > <nw at retrocomputingtasmania.com> wrote:
> > > I suspect the VT05 was not popular as it was slow, uppercase only, 72
> > > characters x 20 lines, and not cursor addressable (much like Teletypes
> > > of that time).
> >
> > I am wrong, DEC VT05 was cursor addressable, it could even erase to end
> of line.
> >
> > 3.8 Direct Cursor Addressing (CAD)
> >
> > https://vt100.net/docs/vt05-rm/chapter3.html#S3.8
> >
> > Through the use of CAD (0168), the cursor can be directed to any one
> > of the 1440 character locations on the CRT screen using three
> > instructions. The CAD function is used to allow updating of displayed
> > data without retransmitting the complete page.
>
> I wrote a VT05 emulator some while ago: https://github.com/aap/vt05
> It's certainly not perfect and probably has some bugs, but I somehow had
> the urge to write it for no particular reason.
> I would actually be interested in the newline delay the machine needs
> because I didn't implement it.
>
> I hope this doesn't derail the discussion too much, but I would actually
> like to know which teletypes were used at bell labs. What strikes me as
> odd is that in UNIX lower case is the norm yet the ASR-33, which I would
> assume was ubiquitous, does only to upper case and also doesn't do some
> characters used by C, like {}. In this famous photo you see ASR-33s...so
> were they really the main interface to early UNIX?
> https://www.bell-labs.com/usr/dmr/www/kd14.jpg
>
> aap
>
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