On Thursday, December 17, 2015 at 6:24:08 PM UTC-5, John Levine wrote:   
      
   > That's the system developed for American Airlines in 1952, slightly   
   > updated in 1956.  By the time the ATSF bought it in 1959, American and   
   > IBM were well into the SABRE project that made all of the   
   > electromechanical systems instantly obsolete.   
      
   Let's also not forget the 1968 CN reservation system, using a very   
   terse interactive format:   
      
   http://massis.lcs.mit.edu/telecom-archives/archives/technical/we   
   tern-union-tech-review/22-2/p062.htm   
      
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