Chuck Guzis wrote:
On 26 Nov 2007 at 11:46, Brent Hilpert wrote:
What about the "Who are you" id message
used on some teletype networks, so one could
confirm that you were talking to the desired recipient terminal? I believe the
ASCII control code 'ENQuiry' was originally intended for eliciting that message.
Wasn't that just a perforated tape loop?
As I recall on the model 33 family it was the so-called answerback drum,
which was a drum of tabs with tabs snapped off for the relevant bit
positions.
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Chris Kennedy
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