IBM 603
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The IBM 603 Electronic Multiplier was the first mass-produced commercial electronic calculating device; it used full-size vacuum tubes to perform multiplication and addition. The IBM 603 was adapted a
Full size and miniature vacuum tubes
IBM CPC
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The IBM Card-Programmed Electronic Calculator or CPC was announced by IBM in May 1949. Later that year an improved machine, the CPC-II, was also announced.
IBM 603
…IBM 603 Developer IBM Manufacturer IBM Type Vacuum-tube calculator Released 1946 Predecessor IBM 601 Successor IBM CPC with IBM 604 computing unit Related IBM 602 The IBM 603 Electronic Multiplier was the first mass-produced commercial electronic calculating device; it…
IBM CPC assembly, with IBM 604 module on front
IBM CPC in 1954