A celebration of old calculators showing the evolution from mechanical calculator to hand held electronic calculator.
Mechanical calculating machines from a collector's point of view, with articles and links to relevant sites.
Information about every HP calculator made since 1968. Includes photo gallery, old advertisements, operating instructions, pricing information and discussion forum.
A gallery containing many varieties of pocket calculators, slide rules, and abacuses.
Technical information about many calculators, including chip pinouts and self-test sequences, and patent information.
Virtual museum of vintage mechanical and electronic desktop calculators from the late 1950s through the late 1970s
Displays handheld and desktop calculators from the 1900s to the present, showing interesting features of each.
Serge Devidts' collection of vintage electronic calculators and some other pieces of old technology.
A collection of programmable and non-programmable calculators and accessories, with articles and repair notes.
A source of information about the technology used in the construction of early electronic calculators. Includes a reverse-engineering project.
Computers /
Hardware /
Calculators
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