[GreenKeys] Teletype sightings

[Jim Haynes]

I was on a flight out of LaGuardia before American Airlines Sabre system 
was in use there.  They were using for reservations a wired-program 
electronic system originally designed for inventory control purposes. The 
system was made by Teleregister and was described in Western Union 
Technical Review in October 1951 (something like 15 years before I 
experienced it)  It worked because a flight at a specific day and time is 
like a part number and the number of seats is like a quantity in stock. 
At the time of the article an experimental version of the system had been 
in use for about four years.

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 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man