HP-65

HP-65 is a computer or programmable calculator.

Overview

The record gives 1974 as its date of establishment or first appearance. Catalogue entries for instruments state maker, signature, completeness and working condition. VALÉORINE records this subject so that lots referring to it can be described consistently.

In detail

first programmable scientific handheld calculator; with RPN and magnetic card reader, produced by Hewlett-Packard from 1974

Sources

Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.

reference work · Reputable secondary · Wikipedia
“HP-65”, English Wikipedia, consulted as further reading
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reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q220638: HP-65
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