HP Calculators Heritage » HP Calculator Heritage Ads 1974 - HP 65

HP Calculator Heritage HP 65 - 1974

The HP-65 was the first programmable handheld calculator in the world. Introduced by Hewlett-Packard in 1974, it was considered an electronic marvel. The HP-65 was tried on backup computations for docking maneuvers on board the NASA Apollo Space Command / Service Module in the Apollo-Soyuz missions in 1975.


Caption: HP-65 It’s programmable! Now comes the world’s first fully programmable pocket calculator: the HP-65. with its own external memory and built-in magnetic card reader.

Hewlett-Packard Ltd

Updated On: 12.07.02

  1. On 05-Aug-2014, Northseeker wrote: 
    TI's SR52 was also an early programmable, but RPN was HP's strong point especially in program mode.
    Your reply to Northseeker

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