Joe's HP Desktop Calculator and Computer Archive

Extensively Revised on 10/19/2000

Article and pictures about the HP 9100 Desktop Calculator. HP's first calculator

Article and Pictures about the HP 9000 200 Series Computers including the HP 9000 216 (9816), HP 9000 217, HP 9000 220 (9920), HP 9000 226 (9826) and HP 9000 (9836). It also includes a brief description of the HP HIL interface.

Article and Pictures about the HP 9807 Integral Personal Computer

Article about HP 9810 Desktop Calculators *New*

Article and Pictures about the HP 9815 and 9815 S Desktop Computers *Revised*

Article about HP 9820 Desktop Calculators *New*

Article about HP 9821 Desktop Calculators *New*

Article about HP 9825 Desktop Calculators *New*

Article about HP 9830 Desktop Calculators *New*

Article about HP 9831 Desktop Calculators *New*

Article about HP 9835 Desktop Calculators *New*

Article about HP 9845 Desktop Calculators *New*

List of interfaces and peripherals for the HP 98x0 Desktop Calculators *New*

List of interfaces and peripherals for the HP 98x5 Series Desktop Calculators *New*

A long article about the HP 98xx calculators, including LOTS more details *New*

Short article and images of the HP 9872 Quick Reference Card

Mystery device of the week: The HP 9877 Tape Memory Unit

Description and pictures of some of the interfaces for the HP 9825, 9835 and 9845 desktop calculators

Article and pictures about the HP 9915 Computer

David Hicks has some excellent information about the internal workings of HP calculators at the Museum of HP Calculators

Peter O. Johnson's Calculator Restoration Page has photographs of the insides of several HP machines along with restoration information.

Rick Furr's Calculator Reference Page has articles including information. on HP calculator microcode and information about the different manufacturing variations of the Spice (HP3x) series.

Alex Knight has some excellent articles about the technology used in the early HP calculators and other brands. Check out his site at: Alex's Calculator Technology Archive

And last but not least, see Gene Wright's web site of HP and TI software. Gene Wright's Calculator Web Site


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