HP's internal code names for HP-41 Message #15 Posted by Garth Wilson on 17 Dec 2005, 1:20 a.m., in response to message #14 by Massimo Gnerucci (Italy)
An HP-41 made before the Halfnut version was out is not a "fullnut". The HP-41 project was internally named "Coconut," probably before they knew what model number they were going to give it. In the summer of 1983, they began investigating the possibility of a version that would be more reliable and easier to manufacture. Originally the idea was to have only half the number of ports, meaning two instead of four, hence the internal name "Halfnut." There were also stories that the name came from ideas to cut the IC count by half, or cut the manufacturing cost by half. I believe HP started shipping the Halfnuts to dealers in September of 1985. In any case, the original HP-41's name is "Coconut," not "Fullnut."
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