[GreenKeys] More Teletypes with Mainframes

[John Nagle]

> Subject: Re: [GreenKeys] More Teletypes with Mainframes
>> >
>> >The military was unhappy about all the varieties of BCD, and proposed
>> >a code called Fieldata that was to be the military standard.  Fieldata
>> >had its own set of problems, so there was the big effort that led to
>> >what
>> >we know as ASCII. ...
>> >
>> >I know Teletype built a limited number of ASR keyboards for Fieldata;
>> >presumably there were printers as well, and presumably they were also
>> >considered Model 29.  It doesn't really matter because the numbered
>> >models are a Bell System thing and Bell never offered the Fieldata
>> >machines to the public.

UNIVAC 1107 and 1108 mainframe computers used a Fieldata typing unit in
the system console, based on a Teletype Model 28/29 mechanism.  6 bits,
no shifts.  This is the best picture of the console I can find:

http://farm8.staticflickr.com/7258/7494444348_36f30dd460_o.jpg

The keyboard was not Teletype; it was a set of pushbuttons
decoded electronically, built by UNIVAC.

				John Nagle