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Last Updated 6/5/2024

Welcome to the Old Calculator (Web) Museum

Before getting into the details of the exhibits in the museum, it is strongly advised that the visitor read through the Old Calculator Museum's Frequently Asked Questions(FAQ) page. Here most of the common questions asked regarding the museum are answered in hopes that any question you might have will be answered there. Of course, if you have a question that isn't answered in the FAQ, please do not hesitate to contact us.

The curator of this museum is passionate about preserving, restoring, and sharing information about old (primarily)electronic and (secondarily)electro-mechanical calculating devices. For over 40 years, the curator has been collecting calculators, accessories, documentation, and anything else that is related to early personal calculating machines from the most advanced electro-mechanical calculators of the late 1950s through the late 1960's, and especially early electronic calculators beginning in around 1961, through the early 1970's when the advent of large scale integrated circuits eventually turned calculators into commodity items.

Over all these years, the curator has come across some interesting and historical calculators, as well as documentation, interviews with some of the folks that were involved with the development of the calculators, and a lot of information shared between vintage calculator enthusiasts (Yes, I'm not the only one interested in this old stuff).

In mid-1997, it was decided that a web site to document the calculators that have been found, along with as much information about their history, technology, and the people involved in creating the machines. This is when the Old Calculator Web Museum came to be.

If you have questions about any of the calculators exhibited here, have more information or comments regarding this site, were involved in electronic calculator development in the 1960's, or find factual, typographical, spelling or grammatical errors, please do not hesitate to send an EMail to the curator with your questions or information.

Every attempt is made to respond to messages sent to the museum within seven days of receipt. Sometimes it may take a few days longer. Please be patient waiting for a response. If there is some urgency to getting a response, please indicate so in your message and an effort will be made to respond as soon as possible.

The Old Calculator Museum specializes primarily in early electronic calculators, as well as some in late-model motorized mechanical calculators that can automatically add, subtract, multiply and divide without human intervention. The museum does not collect or have any information about adding machines, comptometers, counters, or other mechanical devices that can only add or perhaps subtract. We do not have any expertise in these ancient devices and can't provide information or reference for such devices. Please do not write the museum asking about such devices as we simply don't have the resources to provide any useful assistance. Please see the museum's Frequently Asked Questions page for more information.

The Old Calculator Museum is not a resource for purchasing calculators, calculator parts or accessories, or documentation(manuals). Please refrain from asking about purchasing anything from the museum. The only items that the museum may sell are listed at the end of the museum's Wanted page. If you are interested in any of the items listed for sale or trade there, please do not hesitate to ask.

The calculators in the museum's collection are arranged in this listing in rough order as to their estimated age based on date of manufacture, oldest to newest. Click on any of the links in the list below to go to the exhibit page for the particular calculator.

A listing of the content of the museum by manufacturer is available. The listing by manufacturer is independent of this chronological listing. As a result, links for "Next" and "Previous" exhibits within the exhibit pages will link to the next and previous exhibit in chronological order rather than by manufacturer.

Calculators listed that do not have a link associated with them are present in the museum's collection but have not yet had exhibits prepared for them. If you have any questions about calculators that are in the museum's collection but do not yet have an exhibit prepared, don't hesitate to drop us an Email and we'll do our best to answer any questions you have.

Many exhibits (but not all) include a Spec Sheet for the exhibited calculator. The Spec Sheet includes a rundown of the general information about the calculator, such as size, weight, power requirements, technology used, features, quirks, and more. To see the Spec Sheet for a calculator, simply click on the main picture of the calculator (or the "Specs" link on the navigation bar at the top of the page) shown at the top of each exhibit page. The Spec Sheet also has links back to the exhibit page the machine, to related or similar machines, and also links to documentation for the calculator, as well as a link back to this list of calculators in the museum.

Calculators in the Old Calculator Museum

Friden STW-10 Electromechanical Calculator

Bohn Contex Mechanical Calculator

Curta Type II Mechanical Calculator

Sumlock Comptometer/Bell Punch Anita C/VIII

Friden EC-130 [Manual]

Friden EC-132

Wyle Laboratories WS-01 Scientific

Wyle Laboratories WS-02 Scientific [Manual]

Wanderer Conti

Monroe EPIC-2000

Monroe EPIC-3000  [Manual]

Sharp Compet 20

Facit 1121

Casio/Remington 101

Sharp Compet 21

Wang LOCI-2  [Manual]

Wang LOCI Printer

Facit 1122

SCM/Marchant Cogito 240SR

Diehl Combitron S

Mathatronics 8-48

Toshiba "TOSCAL" BC-1411

Nippon Calculating Machine Co. Busicom 161

Sharp Compet 15

Wang 320E Calculator

Wang 360E Calculator

Wang 360SE Calculating System

Wang 362E Calculator

Wang 370 Programmer [Advertisement]

Wang 380 Programmer [Advertisement]

Wang 372 Data Storage [Data-sheet]

Wang 377 Teletype Model 33ASR Input/Output Writer Control

Wang 380 Programmer [Advertisement]

Canon 161

Friden 1112

Monroe 740

Monroe 770

Commodore 500E

Hewlett Packard HP 9100A

Hewlett Packard 9101A Extended Memory

Hewlett Packard 9102A Buffer Box

Mathatronics Mathatron 8-48M Mod II

Casio/Commodore AL-1000

Sanyo ICC-1141

Canon 130S

Industria Macchine Elettroniche (IME) 86-S

IME DG-308 Programmer

IME MS-30 Memory Register Peripheral

Sony Sobax ICC-400W

Sony Sobax ICC-500W

Sharp Compet 17

Sharp Compet 22

Sharp Memorizer 60 Programmer

Nippon Calculating Machine Co. Busicom 207

Sharp Compet 32

Remington-Rand EDC-III

Hewlett Packard 9100B

Sanyo ICC-162

Singer/Friden EC1113

Sharp Compet 16

NCR 18-2

Singer/Friden 1152  [Manual]

Singer/Friden 1160

Brother Calther/Procal 412

SCM Marchant 1016PR

Commodore 1121

Singer/Friden 1162

Canon Canola 1210

Singer/Friden 1166

Monroe 920

Nippon Calculating Machine Co. Busicom 141

Canon 141

Toshiba BC-1211S

Denon DEC-61A4

Monroe 950

Bohn Omnitrex 8

Brother Calther/Procal 514

Monroe 820A

Sharp Compet 12

Descal ASI 500

Victor 14-322

Denon DEC-411

Casio AL-2000

Bohn Omnitrex 12

MITS 816

MITS Programmer

Denon DEC-311

Monroe 990

Unicom 1212

Sharp QT-8D [Manual]

Monroe 1655

Marchant (SCM) Cogito 412

Marchant (SCM) Cogito 414

Singer/Friden EC1114

Singer/Friden EC1115

Singer/Friden EC1116

Burroughs C3350

Burroughs C3146

Victor 14-321

Monroe 1665

SCM Marchant I

Sharp EL-160

Sanyo ICC-0081

ICM 816

Burroughs C3260

Casio AS-L

Casio 121-A

Remington Rand EDC-1201GT "Lektronic"

Sharp EL-8 "Handheld"

Facit 1111 "Handheld"

Sharp Compet 241

Canon 164P

Singer/Friden EC1117

Canon Pocketronic

Sharp EL-8M "Handheld"

Lago Calc LC 816

Panasonic 1000

Singer/Friden EC1118

Canon Canola L163

Cintra/Tektronix Model 909 "Scientific"

Cintra/Tektronix 928 Instructor Interface for 909/911 Calculator [Manual]

Sharp Compet 623B Printing Calculator

Sharp Compet 363P

Canon Canola 167P

Burroughs C3660

Sony Sobax ICC-2550

Commodore C112

Monroe 344 Statistician

Compucorp 324G Scientist

Casio AS-8A

Sanyo ICC-1122

Olympia CD-200

Victor 1800-1441

Compucorp 120 Scientist

Litton / Royal Digital/Digital I (Model 100)

Monroe 630

Compucorp 122E Scientist

Monroe 1610

Wang 144T Scientific

Compucorp 140 Statistician

Compucorp 125E Scientist

Monroe 1656

Wang 500

Sharp EL-811

Heathkit IC-2008A

Monroe 620

Casio fx-1

Wang 700A Advanced Programming Calculator

Wang 720C Advanced Programming Calculator

Wang 701 Output Writer

Wang 705 Micro Interface

Wang 709 Dual Cassette Tape Drives

Wang 711 I/O Writer [Data Sheet]

Wang 718 Memory Expansion Unit

Compucorp 344 Statistician

Lago Calc LC 119

Compucorp 110/X Scientist

Lloyds Accumatic 100

Burroughs C3661

Canon Canola L100A

Casio "Mini"

Addmaster/Marchant Memory-12

Crown CL-80K

Sharp EL-803

Monroe 650

Commodore US*14

Hewlett Packard 9810A

Hewlett Packard 9830A

Master H-1

Hewlett Packard 9820A

Canon  Canola L121

Commodore C108

Miida MC840

Singer/Friden EC1117A

Commodore US*3

Master  II

Adler  804

Canon Canola L100S

Passport CA-850

Hewlett Packard HP-46

Wang 462 Statistical

Commodore US*8 (Version I)

Commodore US*8 (Version II)

Commodore US*10

Sharp EL-804

Sharp Compet 365P

Soundesign 8280

Commodore US*1

SCM Marchant 221

Royal Digital VIII-K

Canon Canola L1210

Sharp Compet 364R [Manual]

Victor MEC/223 & MEC/225

Sharp Compet 229

Panasonic 850

Texas Instruments TI-3000

Rapidman 1208LC

Eiko Digitronic-M

Lloyds Accumatic 70

Singer/Friden 1203 [Manual]

Texas Instruments TI-3500

Sperry-Remington 661-D

Sperry-Remington 663

Texas Instruments SR-20

Tektronix Model 31 [Manual]

Tektronix 31/53 (a.k.a Model 153) Measurement System

Friden 1155 Advanced Programmable [Manual]

Sharp PC-1001

Wang 600

Texas Instruments Exactra 31

Wang C-50 Scientific

Wang C-52 Advanced Scientific

Wang C-86 Government Bond Trader

MITS 7440 Scientific [Manual]

Sharp ELSI 817S

Sperry Remington 823-GT

Monroe 425

Compucorp 324G

Monroe 1920

Casio 121-F

Hewlett Packard 9815A

Sharp EL-8109

Monroe 1860 [Manual]

Monroe 1880 [Manual]

Texas Instruments SR-60/SR-60A

Hewlett Packard 9825A

Hewlett Packard HP-85

Canon Canola L1428

Canon CP-2010

Canon Canola SX-310

Hewlett Packard HP-01 Wristwatch/Calculator

Victor 4900  [Op Manual]  [Prog Manual]

Rockwell 960 [Manual]

Monroe 2880

Hewlett Packard HP-87XM