Victor 3900 calculator engineering prototype

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  • Details
  • Description
Date Introduced
1965
Photographer
Richards, Mark
Dimensions
overall: 7 1/2 in x 13 in x 20 in
Manufacturer
Victor Comptometer Corporation
Copyright Owner
© Mark Richards
Location
US
Keywords
Semiconductor; Electronic
Object ID
102682056
Memory Type
Semiconductor

Six 100-bit MOS shift registers built by General Microelectronics provided memory for this calculator, the first to use MOS for both logic and memory. But the immature MOS manufacturing process made the parts unreliable, hobbling sales.