Calculator Links

Other Sites of Interest:

Personal calculator collectors sites: Other collectors such as myself, display their collections.
Institutions: Museums and Universities display their collection.
Curta sites: All the links to this great "Pepper Grinder".
Semi related sites: Typewrites, slide rules, Abacus.
Sites with classified posting: including shops.
Tidbits Stamps, Turing.
Sites with further links: Virtual Museum of Computing.

Michel Bardel's list : This is a tentative list of all existing mechanical machines since 1851. Michel has worked it out for more than ten years, using lists, catalogs, brochures, books and ads. Over 800 items.
Mechanical Calculators: Gerold Beckers of Holland has an impressive display of mechanical calculators. His site includes a systematic listing of different types according the working principal with many photographs.
Office Calculators: Part of the project to collect, professionally photograph, and archive Dr. Bergin's materials which span the scope of computing history. This site is maintained by Seth Gordon.
Early Calculators: Dave Hickes has expanded his HP site, and has added a large section which deals with early calculating Machines.
Personal collection: Peter Kernwein displays his calculator collection.
Computer Collection: by Paul Pierce. Presents a personal collection of historical computer equipment, including mainframes and minicomputers (especially the PDP-8 family).
World of Numbers: Section: Vintage Calculators. Nice chronological display of mechanical calculators. By James Redin.
The Museum of HP Calculators: All About the small HP Pocket calculators by Dave Hicks, includes, buy/sell adds.

American Computer Museum: Founded in 1990 as a non-profit corporation with the IRS and the state of Montana. It holds thousands of items, magzines, books, manuals, etc. George Keremedjiev, Director.
Linz University - Austria - Office antiques - A well docomented site with much information about mechanical calculators. Another section is dedicated to the pioneers of mechanical calculating machines such as Pascal and Leibnitz.
Musée des arts et métriers: The Paris museum of technics hold an impressive collection of calculating machines.
Pisa University - Italy - Museo degli Strumenti per il Calcolo Dipartimento di Fisica. Some nice photos of mechanical calculators.

The Curta Calculator Page- By Rick Furr
Curta site- A great site a about the amazing Curta, with many photos. By Greg Saville.
The Amazing Curta - by Bruce Flamm .
How to Calculate with a Curta - by Nicholas Bodley .
Curta Handhelds - The Museum of HP Calculators - by Dave Hicks .
The Gemmary - A Nice picture of a CURTA Model II - by R.C. Blankenhorn and Vince Austin .
Antiques of Science and Technology - A Nice picture of a CURTA Model I .
Curta Operating Man u al - on line Curta manual by Andries de Man, including patents for Odhner & Baldwin .
One of the four Curta Patents - by Andries de Man.
Faster than Win95 - by Gyro Gearloose.

Collecting Calculators: A new web site as a secondary site for the IACC. One important feature is a classified posting section for those wanting to buy/sell/trade calculators.
The Gemmary: Old & Rare Books - Early Scientific Instruments - with classified posting.
D'Antiques: A large virtual antique store, with a large collectors database, a Collectibles Message Board which allows you to post messages, and a large selection of calculators for sale.
Collectric: A virtual store, specializing in elecrtical collectibles, including calculators. Tom Welch.
Office Machine American: Reprints of calculator catalogs.

Semi related sites:

The Slide Rule Home Page: A page which describes types of slide rules, how they work, pictures of many slide rules, societies, many books, and more. Great color photos!
The Abacus: The Art of Calculating with Beads . Luis Fernandes . Operate the abacus by clicking the mouse-pointer on the beads; unlike a real abacus, the numeric value for each column is updated in the top frame. . When complete, this will be a ...
Trading site for Slide Rules. There's also LOTS of information there. By Andrew D Davie of Australia !!!
Scientific Antiques Page: This page is maintained by Thomas E. Jones, and is a good jumping block for people who want to get in touch with other collectors of like material.
The Classic Typewriter Page: Typewriter of the Month -- December 1995 . Typewriter Quote of the Month -- December 1995 . Ten Most Wanted Typewriters -- an illustrated wish list . A brief illustrated history of typewriters . Resources for the typewriter collector.

Tid Bits:

Computer History - in a Different Way (Stamps): In the paper we are describing in an original way the history of digital computing through the pictures from the postal stamps from all countries of the World. Postage stamps designers were not interested in special details, because their main purpose was to show us development of computers and their applications.
Turing Java: A nice usage of Java showing the principals behind the Turing Machine.
Lego® brickes and Calculating Machines: Richard Wright of PCS Education Systems thinks his students will learn mechanics better by building models!