JOHNNIAC CPU

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  • Details
  • Description
Date Introduced
1953 ca.
Photographer
Richards, Mark
Dimensions
overall, incl platform base: 108 in x 160 in x 58 1/2 in
Manufacturer
RAND Corporation
Credit Line
Gift of Los Angeles County Museum of Natural History
Copyright Owner
© Mark Richards
Object ID
102657545
Memory Type
Selectron tubes (initially)
Memory Size
1024 words
Memory Width
40-bit
Cost
$470,000

The art-deco enclosure for this 2½ ton computer held 5,000 vacuum tubes that were all hand-wired and air-cooled. It was used by many RAND researchers, including Artificial Intelligence pioneers Newell, Shaw, and Simon.