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- ATHENA_computer abstract "The UNIVAC Athena computer was the processor for ground commands to the HGM-25A Titan I ICBM as part of Western Electric's missile guidance system. The Athena was the "first transistorized digital computer to be produced in numbers" and computing Titan flight data to the necessary burn-out point to start a ballistic trajectory toward the target. Consisting of ten cabinets plus console on a 13.5 by 20 foot floor pan along with two motor-generator sets at remote locations, inputs were from one of two large, silo-contained, Western Electric radars for redundancy. The "20 foot tall antenna" assemblies raised prior to launch and locked to the raised Titan's "missileborne antenna". Onboard Titan attitude control rolled the missile to maintain the missile antenna aligned to the ground antenna. Computer outputs were transmitted to the missile from a ground transmitter a "quarter mile out". Completed in 1957, the Athena weighed 21,000 pounds.The Athena was designed by Seymour Cray at Sperry Rand Corporation and cost about $1,800,000.The 26 Athena computers, when declared surplus by the Federal Government, went to various US universities. The one at Carnegie was used as an undergrad project until 1971, when the former EE undergrad students (Athena Systems Development Group) orchestrated its donation to the Smithsonian. It joined a sister unit, the Atlas Mod I Guidance Computer, at the Smithsonian.It had a Harvard architecture design; separate data and instruction memories were used.A Frieden terminal with paper tape equipment was used with the Athena, as well as an operating console. An interesting feature is the mode "battleshort". In this mode, referred to as "melt-before-fail", the power to the machine could NOT be shut off by a failsafe.The Athena used a massive motor-generator set with 440 volt 3 phase AC input. I hooked this up from the lab mains, and got the generator set going initially. When the generator was started, the building lights dimmed, and there was no question that the machine was on. The motor generator control unit (seen behind the console) weighed a ton, and the motor/generator itself weighed over 2 tons.The last Athena launch was a Thor-Agena missile launched in 1972 from Vandenberg AFB in California, the last of over 400 missile flights using the Athena.".
- ATHENA_computer wikiPageID "15413685".
- ATHENA_computer wikiPageRevisionID "594053237".
- ATHENA_computer hasPhotoCollection ATHENA_computer.
- ATHENA_computer subject Category:Cold_War_military_computer_systems_of_the_United_States.
- ATHENA_computer subject Category:UNIVAC_mainframe_computers.
- ATHENA_computer type Artifact100021939.
- ATHENA_computer type Computer103082979.
- ATHENA_computer type Device103183080.
- ATHENA_computer type Instrumentality103575240.
- ATHENA_computer type Machine103699975.
- ATHENA_computer type MilitaryComputers.
- ATHENA_computer type Object100002684.
- ATHENA_computer type PhysicalEntity100001930.
- ATHENA_computer type Whole100003553.
- ATHENA_computer comment "The UNIVAC Athena computer was the processor for ground commands to the HGM-25A Titan I ICBM as part of Western Electric's missile guidance system. The Athena was the "first transistorized digital computer to be produced in numbers" and computing Titan flight data to the necessary burn-out point to start a ballistic trajectory toward the target.".
- ATHENA_computer label "ATHENA computer".
- ATHENA_computer sameAs m.03m7md0.
- ATHENA_computer sameAs Q16962443.
- ATHENA_computer sameAs Q16962443.
- ATHENA_computer sameAs ATHENA_computer.
- ATHENA_computer wasDerivedFrom ATHENA_computer?oldid=594053237.
- ATHENA_computer isPrimaryTopicOf ATHENA_computer.