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/CALC.HTMBe Calc
Serge Devidts' collection of vintage electronic calculators and some other pieces of old technology.
http://www.devidts.com/be-calc/
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/
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/
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
Calculator Technical Information
Technical information about many calculators, including chip pinouts and self-test sequences, and patent information.
http://www.calcinfo.com/
Calculator's Pages
A collection of early mechanical calculating machines and other calculating devices.
http://www.calculators.szrek.com
Calculators 3000
A software simulator of Soviet calculators like B3-34, MK-61, MK-52 and others. Program is available for Windows OS.
http://www.emulator3000.emuita.it/c3.htm
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/
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/
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
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/
Electronic Calculator History and Technology Museum
Preserving the history of electronic calculators with information and photographs of early desktop and pocket calculators.
http://aknight.home.mindspring.com/calc.htm
Gregory Escov's homepage
Some articles about Russian made calculators, including undocumented features and error conditions.
http://members.tripod.com/GregEscov/
How to Collect LED Pocket Calculators
A guide by Larry Gilbert.
http://www.ndirect.co.uk/~e.tedeschi/howto3.htm
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
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 Pocket Calculating Devices
A gallery containing many varieties of pocket calculators, slide rules, and abacuses.
http://www.calculators.de/
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.html
Old HP and TI Calculators
Photographs and information about HP and TI calculators, including many programs.
http://www.rskey.org/gene/hpgene/
Programmable Calculators
A collection of programmable and non-programmable calculators and accessories, with articles and repair notes.
http://www.rskey.org/
Retrokit
Photographs of some older calculator models.
http://www.tozzo.freeserve.co.uk/calc/calc.htm
Reverse-Engineering the HP-75C
A wealth of information about the HP-75C.
http://www.fortitudine.com/~coryc/html/hp75c.shtml
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
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
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_calcs.htm
Stellatron Calculators
An A-Z index of manufacturers, with product photographs, and a timeline of model releases.
http://website.lineone.net/~lineup/st-pages/calcmain.html
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
The Famous Slide Rule Page
Pictures and descriptions of The Castell Addiator and The Rapid-Calcolo.
http://www.geocities.com/ResearchTriangle/Forum/7787/sliderule_collecting.htm
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
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
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 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
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/
Vintage Calculators
A celebration of old calculators showing the evolution from mechanical calculator to hand held electronic calculator.
http://www.vintagecalculators.com/
Vintage calculators
A collector displays his small collection of old calculator models.
http://www.netcomuk.co.uk/~wwl/cacls.html
Vintage Calculators
Information and lists of vintage and classic calculators, primarily Hewlett-Packard and Texas Instruments.
http://www.decodesystems.com/calculators.html
Yahoo! Groups : oldcalcs
Bulletin board for collectors of old electronic calculators.
http://groups.yahoo.com/group/oldcalcs/
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