24 Mar
2013
24 Mar
'13
3:21 p.m.
On Mar 24, 2013, at 12:27 PM, Lawrence Wilkinson <lawrence at ljw.me.uk> wrote:
On 24/03/13 17:35, Guy Sotomayor wrote:
The other thing that was different between them was the keyboard. There was no
possibility of a direct linkage between the keyboard and the printer unit. The keyboard
required a "reset" signal to unlock it after each key was pressed (possibly with
the exception of shift...it's been too long...I can't remember that aspect of it
anymore).
TTFN - Guy
When I was in school (35 years ago) I had an IBM
1052 terminal that I interfaced to an 8080. The issue with the 1052 was that the relays
were all 48v so finding drivers was interesting. ;-) It took me a bit of fiddling with the
timing to get it to print properly (at 134.5 baud). It sure beat the ASR/KSR-33s that most
other folks were using for their terminals just for the "cool" factor! TTFN -
Guy
The mechanicals of the 735 and 1052 are basically the same. The 1052 has pin feed, extra
switches and things to suit use as a computer console, whereas the 73x are designed for
word processing use. The one I got came from such a WP system, though I've no idea
where the rest of that system got to. It was a "Kode" system (Calne, Wiltshire,
UK) which used paper tape.