by Wlodek Mier-Jedrzejowicz Ph.D.
|Introduced on August 1 1975, six months
after the HP-21, this was the eighth equal (with the
HP-25) handheld electronic calculator sold by HP - the
business counterpart of the HP-21, and the same size.
It was not programmable but
provided a useful range of business functions, including
statistics. Like other HP business models it had the
Its small size, 10 data registers and the fairly low price of $165 probably made it appeal to business users, but the HP27 introduced 5 months later at only $35 more, and with far more functions quickly reduced its sales, so it is rather difficult to find now.
Its codename of "Turnip"
carried on the tradition of calling these models after
This article is part of the WMJARTS file. This file contains a series of articles written by Wlodek Mier-Jedrzejowicz and published in DATAFILE, the journal of the HPCC. The article was reproduced with permission of the author.
Copyright © Wlodek Mier-Jedrzejowicz Ph.D.