Calculators

	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. - www.lyvedon-way.fsnet.co.uk/calc/CALC.HTM
	Be Calc : Serge Devidts' collection of vintage electronic calculators and some other pieces of old technology. - 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. - 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. - www.calculi.nl/
	Calculator Collecting : Webring designed to allow navigation between similar sites dealing with the hobby of collecting, and history of electronic calculators. - k.webring.com/hub?ring=calculator
	Calculator Technical Information : Technical information about many calculators, including chip pinouts and self-test sequences, and patent information. - www.calcinfo.com/
	Calculators 3000 : A software simulator of Soviet calculators like B3-34, MK-61, MK-52 and others. Program is available for Windows OS. - 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. - 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. - web.tiscali.it/city/
	Curta Calculating Machines : Links to useful sites about the Curta. Also documents the full disassembly of one, with pictures. - www.teleport.com/~gregsa/curta/
	datamath.org - 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. - www.cs.ubc.ca/~hilpert/eec/
	Gregory Escov's homepage : Some articles about Russian made calculators, including undocumented features and error conditions. - members.tripod.com/GregEscov/
	How to Collect LED Pocket Calculators : A guide by Larry Gilbert. - www.ndirect.co.uk/~e.tedeschi/howto3.htm
	hp41.org - www.hp41.org/
	hpmuseum.org - www.hpmuseum.org/
	Mechanical Calculating Machines : Mechanical calculating machines from a collector's point of view, with articles and links to relevant sites. - www.webcom.com/calc/
	Museum of Pocket Calculating Devices : A gallery containing many varieties of pocket calculators, slide rules, and abacuses. - www.calculators.de/
	Museum of Soviet Calculators : Displays handheld and desktop calculators from the 1900s to the present, showing interesting features of each. - www.taswegian.com/MOSCOW/soviet.html
	oldcalculatormuseum.com - www.oldcalculatormuseum.com/
	Programmable Calculators : A collection of programmable and non-programmable calculators and accessories, with articles and repair notes. - www.rskey.org/
	Retrokit : Photographs of some older calculator models. - www.tozzo.freeserve.co.uk/calc/calc.htm
	Reverse-Engineering the HP-75C : A wealth of information about the HP-75C. - www.fortitudine.com/~coryc/html/hp75c.shtml
	Soviet Calculators Collection : Pictures of calculators from the former USSR. Includes advertisements, articles, and a guestbook. English and Russian languages. - 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. - www.dotpoint.com/xnumber/russian_calcs.htm
	Stellatron Calculators : An A-Z index of manufacturers, with product photographs, and a timeline of model releases. - website.lineone.net/~lineup/st-pages/calcmain.html
	szrek.com - www.calculators.szrek.com/
	Texas Instruments 59 : All about the TI-59 programmable calculator, with photographs and information about accessories, documentation and programs. - www.ti59.com/index.html
	The Old Calculators Web Museum : Virtual museum of vintage mechanical and electronic desktop calculators from the late 1950s through the late 1970s - www.geocities.com/oldcalculators/
	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. - membres.lycos.fr/hpcalc/
	vcalc.net - www.vcalc.net/
	Vintage Calculators : A celebration of old calculators showing the evolution from mechanical calculator to hand held electronic calculator. - www.vintagecalculators.com/
	Vintage Calculators : Information and lists of vintage and classic calculators, primarily Hewlett-Packard and Texas Instruments. - www.decodesystems.com/calculators.html
	Vintage calculators : A collector displays his small collection of old calculator models. - www.netcomuk.co.uk/~wwl/cacls.html
	Yahoo! Groups : oldcalcs : Bulletin board for collectors of old electronic calculators. - groups.yahoo.com/group/oldcalcs/