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Calculator Technical Information
Technical information about many calculators, including chip pinouts and self-test sequences, and patent information.
http://www.calcinfo.com/
HP-41 Archive Site
A library of information about the HP-41 series calculators, with emulators, publications, FAQ, and related links.
http://www.hp41.org
Reverse-Engineering the HP-75C
A wealth of information about the HP-75C.
http://www.fortitudine.com/~coryc/html/hp7...
Texas Instruments 59
All about the TI-59 programmable calculator, with photographs and information about accessories, documentation and programs.
http://www.ti59.com/index.html
Using and Collecting HP Calculators
Information about various HP calculator models, with photographs. Includes instructions on using some of the special functions of some models.
http://membres.lycos.fr/hpcalc/
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.
http://www.datamath.org
How to Collect LED Pocket Calculators
A guide by Larry Gilbert.
http://www.ndirect.co.uk/~e.tedeschi/howto...
Stellatron Calculators
An A-Z index of manufacturers, with product photographs, and a timeline of model releases.
http://website.lineone.net/~lineup/st-page...
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, many interesting pictures of the machines, production years, and articles.
http://www.rechenmaschinen-illustrated.com...
Soviet Calculators Collection
Pictures of calculators from the former USSR. Includes advertisements, articles, and a guestbook. English and Russian languages.
http://www.rk86.com/frolov/calcolle.htm
Museum of Pocket Calculating Devices
A gallery containing many varieties of pocket calculators, slide rules, and abacuses.
http://www.calculators.de/
Be Calc
Serge Devidts' collection of vintage electronic calculators and some other pieces of old technology.
http://www.devidts.com/be-calc/
Calculator Collecting
Webring designed to allow navigation between similar sites dealing with the hobby of collecting, and history of electronic calculators.
http://k.webring.com/hub?ring=calculator
Vintage Calculators
A celebration of old calculators showing the evolution from mechanical calculator to hand held electronic calculator.
http://www.vintagecalculators.com/
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.
http://www.oldcalculatormuseum.com
Yahoo! Groups : oldcalcs
Bulletin board for collectors of old electronic calculators.
http://groups.yahoo.com/group/oldcalcs/
Old HP and TI Calculators
Photographs and information about HP and TI calculators, including many programs.
http://www.rskey.org/gene/hpgene/
The X-Number World of Calculators
A collection of articles about the history of calculators, mechanical and electronic. Also, a number of on-line calculators, recommended books, and a vintage collectors forum.
http://www.dotpoint.com/xnumber
Electronic Calculator History and Technology Museum
Preserving the history of electronic calculators with information and photographs of early desktop and pocket calculators.
http://www.classiccmp.org/calcmuseum/calc....
Vintage Calculators
Information and lists of vintage and classic calculators, primarily Hewlett-Packard and Texas Instruments.
http://www.decodesystems.com/calculators.h...
Gregory Escov's homepage
Some articles about Russian made calculators, including undocumented features and error conditions.
http://members.tripod.com/GregEscov/
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 cassette interface.
http://www.pisi.com.pl/piotr433/index.htm
Collection of Calculators, Portable Computers and Vintage Electronics
Calculators from the '70s, and famous home and personal computers from '80s. Photos, historic information and links to other resources.
http://web.tiscali.it/city/
Anita Calculator Simulators
A collection of Sumlock Anita calculators and simulators, and related devices associated with the Sumlock factory in Portsmouth, U.K., in the 60s and 70s.
http://www.lyvedon-way.fsnet.co.uk/calc/CA...
The Famous Slide Rule Page
Pictures and descriptions of The Castell Addiator and The Rapid-Calcolo.
http://www.geocities.com/ResearchTriangle/...
Calculator's Pages
A collection of early mechanical calculating machines and other calculating devices.
http://www.calculators.szrek.com
Rick Furr's Calculator Reference Page
A collection of information about HP, TI and Curta calculators. Includes articles and many related links.
http://www.vcalc.net
Retrokit
Photographs of some older calculator models.
http://www.tozzo.freeserve.co.uk/calc/calc...
Programmable Calculators
A collection of programmable and non-programmable calculators and accessories, with articles and repair notes.
http://www.rskey.org/
Mechanical Calculating Machines
Mechanical calculating machines from a collector's point of view, with articles and links to relevant sites.
http://www.webcom.com/calc/
Museum of Soviet Calculators
Displays handheld and desktop calculators from the 1900s to the present, showing interesting features of each.
http://www.taswegian.com/MOSCOW/soviet.htm...
Soviet Calculators History
Article about the history of the development of Soviet calculators, the features and interesting characteristics of the most relevant models are described.
http://www.dotpoint.com/xnumber/russian_ca...
EEC - Early Electronic Calculator Technology Reference
A source of information about the technology used in the construction of early electronic calculators. Includes a reverse-engineering project.
http://www.cs.ubc.ca/~hilpert/eec/
The Old Calculators Web Museum
Virtual museum of vintage mechanical and electronic desktop calculators from the late 1950s through the late 1970s
http://www.geocities.com/oldcalculators/
The Museum of HP Calculators
Information about every HP calculator made since 1968. Includes photo gallery, old advertisements, operating instructions, pricing information and discussion forum.
http://www.hpmuseum.org
Vintage calculators
A collector displays his small collection of old calculator models.
http://www.netcomuk.co.uk/~wwl/cacls.html
Bring Back the HP 15C
Fans of the 15C want Hewlett-Packard to put it back in production. Find a list of reasons to bring it back, the reason it was discontinued in the first place, and an online petition.
http://hp15c.org/
Curta Calculating Machines
Links to useful sites about the Curta. Also documents the full disassembly of one, with pictures.
http://www.teleport.com/~gregsa/curta/
HP Collection
Matthias Wehrli's collection of HP calculators and accessories. Includes photographs and specifications for items in the collection.
http://www.hp-collection.org/
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.
http://www.calculi.nl/
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2006