Calculating Machines
The private collection of the Dutch collector Nico Baaijens of mechanical, electro-mechanical and electronic counting, adding and calculating machines. Many pictures and close-ups.
Calculator Collecting
Webring designed to allow navigation between similar sites dealing with the hobby of collecting, and history of electronic calculators.
Casio FX-700P Programmable Calculator
Technical information about hardware, interfacing, and programming of this vintage device. Includes a construction project for a storage device to emulate the original FA-3 cassett…
Datamath Calculator Museum
An overview of the calculators manufactured by Texas Instruments Inc. from the famous Datamath (1972) to the modern Graphics calculators, with history and articles.
Electronic Calculator History and Technology Museum
Preserving the history of electronic calculators with information and photographs of early desktop and pocket calculators.
HP Collection
Matthias Wehrli's collection of HP calculators and accessories. Includes photographs and specifications for items in the collection.
Illustrated Calculating Machines by Ernst Martin
English translation of the most important book on calculating machines "Rechenmaschinen" by Ernst Martin is illustrated on this site. The site includes .pdf version of the book, ma…
Museum of Pocket Calculating Devices
A gallery containing many varieties of pocket calculators, slide rules, and abacuses.
Old HP and TI Calculators
Photographs and information about HP and TI calculators, including many programs.
Programmable Calculators
A collection of programmable and non-programmable calculators and accessories, with articles and repair notes.
Rick Furr's Calculator Reference Page
A collection of information about HP, TI and Curta calculators. Includes articles and many related links.
Texas Instruments 59
All about the TI-59 programmable calculator, with photographs and information about accessories, documentation and programs.
The Famous Slide Rule Page
Pictures and descriptions of The Castell Addiator and The Rapid-Calcolo.
The Old Calculator Web Museum
Photographs of the exterior and interior of many vintage mechanical and electronic calculators. Also includes vintage advertisements and technical literature.
The Old Calculators Web Museum
Virtual museum of vintage mechanical and electronic desktop calculators from the late 1950s through the late 1970s
Vintage calculators
A collector displays his small collection of old calculator models.
Vintage Calculators
Information and lists of vintage and classic calculators, primarily Hewlett-Packard and Texas Instruments.
Vintage Calculators
A celebration of old calculators showing the evolution from mechanical calculator to hand held electronic calculator.
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