HP-27
id:
hp-27-237-16857945
title:
HP-27
text:
The HP-27 was a hand-held scientific and financial, but not programmable, calculator made by Hewlett-Packard between 1976 and 1978. Unlike all previous HP's pocket calculators, the HP-27 could do mathematic, statistic and business operations. It used Reverse Polish Notation (RPN) for calculations, working on a four-level stack (x,y,z,t). Nearly all keys had two alternate functions, accessed by a yellow and black prefix key. So despite the 30 keys only keyboard it could access about 68 functions.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/HP-27
date created:
date modified:
2019-04-30T19:20:13Z
main entity:
{"identifier":"Q5635549","url":"https://www.wikidata.org/entity/Q5635549"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/3/3b/27new.jpg","width":500,"height":906}
fields total:
13
integrity:
14