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Key-driven mechanical calculator
The comptometer was the first commercially successful key-driven mechanical calculator, patented in the United States by Dorr Felt in 1887. It was a key-driven
Comptometer
Mechanical machine for arithmetic operations for absolute calculators
industrial production of the more successful Odhner Arithmometer in 1890. The comptometer, introduced in 1887, was the first machine to use a keyboard that consisted
Mechanical_calculator
Type of mechanical calculator designed to perform basic arithmetic
not gain widespread use until Dorr E. Felt started manufacturing his comptometer (1887) and Burroughs started the commercialization of differently conceived
Adding_machine
1961 all-electronic desktop calculator
built by the Bell Punch Co. in Britain, and marketed through its Sumlock Comptometer division, they used vacuum tubes and cold-cathode switching tubes in
Sumlock_ANITA_calculator
Method of subtraction
Florida Tech Easy Instructions for Operation the Controlled Key Comptometer, Comptometer Division, Felt and Tarrant Mfg. Co., Chicago, 1917, p. 12 Carl
Method_of_complements
Device used for calculations
the only other competitor in true commercial production, had sold 100 comptometers. It wasn't until 1902 that the familiar push-button user interface was
Calculator
American toy company
larger facilities in Dyersville, Iowa 1967 - Ertl is acquired by Victor Comptometer Corporation 1971 - Ertl acquires Carter Tru-Scale 1973 - Ertl begins
Ertl_Company
American technology company
the Comptometer Corporation, which produced calculating machines and a telecommunication device called the Electrowriter. In 1965 Victor Comptometer Corporation
Victor_Technology
1965 electronic calculator
"smaller than a typewriter". The original prototype was built by Victor Comptometer using vacuum tubes in 1963. When this was successful, the company sought
Victor_3900
Family of digital circuits
integrated circuits for the Victor 3900 electronic calculator for Victor Comptometer proved to be too ambitious given the reliability of PMOS circuits at
PMOS_logic
American inventor and industrialist (1862–1930)
American inventor and industrialist who was known for having invented the Comptometer, an early computing device, and the Comptograph, the first printing adding
Dorr_Felt
American manufacturer and marketer of bows
fiberglass and other modern materials. Fred Bear sold the company to Victor Comptometer in 1968, but remained the president of Bear Archery. The company was
Bear_Archery
British Labour politician
she worked at the Pilkington Glass manufacturing plant, first as a comptometer operator, and later as a buyer for the engineering division. Rimmer first
Marie_Rimmer
Powered mechanical device
designs were completed in Babbage's lifetime. The Arithmometer and the Comptometer are mechanical computers that are precursors to modern digital computers
Machine
Single-shot rifle
In 1961, Cass Hough, the president of Daisy Heddon division of Victor Comptometer, purchased the design of a new firearm system. The new system was developed
Daisy_V/L
English record producer, talent manager, impresario and author (born 1944)
Belgium. Oldham's Australian-born mother, Celia Oldham, was a nurse and comptometer operator. Oldham attended the Aylesbury School for Boys, Cokethorpe School
Andrew_Loog_Oldham
19th-century mechanical calculator patented by French inventor Thomas de Colmar
most-produced mechanical calculator in the world, by 1900 four machines, the comptometer and Burroughs' adding machine in the USA, Odhner's Arithmometer in Russia
Arithmometer
City in Wisconsin, United States
Edward A. Everett, Wisconsin State Representative Dorr Felt, inventor of comptometer Edwin G. Fifield, Wisconsin State Representative Lucius G. Fisher, state
Beloit,_Wisconsin
Topics referred to by the same term
the Tesla Model 3 Honda e, an electric car by Honda Comptometer Model E, a version of the Comptometer mechanical calculator Vickers Model E machine gun
Model_E
Electronic numeric display device
early electronic desktop calculators, including the first: the Sumlock-Comptometer ANITA Mk VII of 1961 and even the first electronic telephone switchboards
Nixie_tube
Component of some mechanical calculators
Otherwise, pressing a 5..9 key would require either a longer stroke (as in a Comptometer) or excessive force combined with a gently sloping cam surface. – Curt
Leibniz_wheel
English musician (born 1950)
to help support her family. She lost her first job (as a typist and comptometer operator) after taking her guitar to work and playing it during tea-breaks
Joan_Armatrading
Anglo-Irish entrepreneur, engineer and mathematician
entrepreneur, mathematician and computing pioneer. During World War I she was a comptometer operator in a munitions factory during which time she realised the potential
Dora_Metcalf
U.S. semiconductor company
That same year, the company entered an agreement to convert a Victor Comptometer tube-based electronic calculator to all-IC form, the Victor 3900, with
General_Micro-electronics
American athlete and businessman
he became a business executive with Olin Corporation and later Victor Comptometer and then chair and principal owner of AquaVac Systems. He was president
F._Morgan_Taylor_Jr.
American reality television series episodes
era coat buttons; a collection of Montie Montana memorabilia; a 1915 comptometer; and a 2005 Suzuki GSX-R 1300 Hayabusa motorcycle. Upset over dwindling
List_of_Pawn_Stars_episodes
Topics referred to by the same term
Victor Technology, known earlier as Victor Adding Machine Co. and Victor Comptometer, an American calculator company Victor (sports company), a Taiwanese
Victor
Topics referred to by the same term
and AFL football defensive back Dorr Felt (1862–1930), inventor of the Comptometer, an early computing device Edward P. Felt (1959–2001), a victim of the
Felt_(disambiguation)
Christian university in Elmhurst, Illinois, US
Buehler Library, named in honor of the former president of the Victor Comptometer Corporation and board of trustees member, is home to over 237,000 volumes
Elmhurst_University
White, are as follows: Around 1928, White took SOI from nonelectric comptometers to punch cards and machine tabulation. He also introduced sampling of
Statistics_of_Income
American computer company
Series C) key-driven calculators in both manual and electrical assisted comptometers. In the late 1960s, the Burroughs sponsored "nixi-tube" provided an electronic
Burroughs_Corporation
Early mechanical calculator
method for subtractions. Adding machine Stepped reckoner Arithmometer Comptometer Difference engine Analytical engine Z1 (computer) Œuvres de Pascal in
Pascaline
Corporate headquarters in Racine, Wisconsin
generally had oval wooden desktops, with cutouts for devices such as comptometers and typewriters. The built-in drawers under each desk could swing outward
Johnson_Wax_Headquarters
Table containing pre-calculated values
such as the abacus, log tables, slide rule, stepped reckoner, or the comptometer, but the most commonly used device for everyday commerce was the ready
Ready_reckoner
American actor
Year Title Role Notes 1959, 1963 Naked City Officer Dorkin / Comptometer 2 episodes 1963, 1964 The Defenders Police Sargeant / Patrolman Burke 1966 Hawk
Howard_Mann
Calendar year
Club. July 19 – Dorr Eugene Felt receives the first U.S. patent for his comptometer. July 21 – Ten Italian workers are killed and six are injured by a train
1887
American politician (1902–1988)
University in St. Louis and was a teacher and director at St. Louis Comptometer school. She was married to John B. Sullivan, who served four terms in
Leonor_Sullivan
American politician
They would have eight children, including Dorr Felt, inventor of the comptometer. Felt was a member of the Assembly from 1872 to 1873. Additionally, he
Eugene_K._Felt
German-American painter (1880–1966)
eventually developing and patenting devices including an electromagnetic comptometer, a radar device for ships at sea, a sensitized light bulb, and a portable
Hans_Hofmann
British political activist (1941–2025)
general practitioner. For many years from the 1960s, Harper worked as a comptometer operator at the Barnsley Co-operative Society. During this time Harper
Anne_Scargill
8-bit microprocessor
become the Intel 4004, and on their sales trips they visited Victor Comptometer in Chicago looking for potential customers. Victor had introduced the
Motorola_6800
American gun maker
"It's A Daisy" by Cass S. Hough, pp 45-52, 1976, Daisy Division Victor Comptometer Corporation, Rogers, Arkansas "Uncle Dan Lefever Cup". Elliott, Robert
Daniel_Myron_LeFever
are manufactured by the Bell Punch Company and marketed by its Sumlock Comptometer division. 1963 High strength carbon fibre is invented by engineers at
List of British innovations and discoveries
List_of_British_innovations_and_discoveries
Digit transferred from one column to another
notable machine using similar method is the highly successful 19th century Comptometer, which replaced the weights with springs. Some innovative machines use
Carry_(arithmetic)
American judge and police officer
worked as a printer and his mother, Rosalie, worked as a homemaker and comptometer operator. In the 1920s, his grandparents, Maria and Angelo, immigrated
George_Grasso
1887 by George Hancock. 1887 Comptometer A comptometer is a mechanical or electro-mechanical adding machine. The comptometer was the first adding device
Timeline of United States inventions (before 1890)
Timeline_of_United_States_inventions_(before_1890)
Park in Michigan, USA
Michigan. The site was once part of the estate of the inventor of the comptometer Dorr E. Felt, whose summer home, the Felt Mansion, built in 1928, is
Saugatuck_Dunes_State_Park
Former confectionary business in Dublin, Ireland
Patricia Hurl's first job was in the office of Williams and Woods as a comptometer operator. The company was ultimately taken over by Nestlé after its UK
Williams_and_Woods
anywhere in the world for forty years (Dorr E. Felt only sold one hundred comptometers and a few comptographs from 1887 to 1890). Its simplicity made it the
Timeline of computing before 1950
Timeline_of_computing_before_1950
English music publication
musical beat. Harry's fiancée Virginia Sowry gave up her accountancy/comptometer operator job at Woolworth's and worked full-time for two guineas (£2
Mersey_Beat
United States historic place
dramatically modernized computing. Earlier key driven adding machines, like the comptometer, featured eight or more columns of nine keys, which made them cumbersome
Standard Adding Machine Company
Standard_Adding_Machine_Company
Mechanical calculator capable of multiplying
the Millionaire, like the arithmometer, the Odhner arithmometer or the comptometer were simple adding machines; they implemented multiplication by continued
The_Millionaire_(calculator)
British swimmer (born 1940)
Commonwealth Games. Davies was born in the Rhondda Valley, Wales and was a comptometer operator at Weldon and Wilkinson in Nottingham. She first represented
Diana_Davies_(swimmer)
American sportscaster (1914–2001)
University of Omaha. In 1940 he moved to Washington D.C. to work as a comptometer operator at the Social Security Administration. He also took classes
Jim_Gibbons_(sportscaster)
Williams and Woods, a Dublin confectionery factory, where she worked as a comptometer operator. Hurl attended the National College of Art and Design in 1975
Patricia_Hurl
American baseball player (1921–2025)
Jochum attended Cincinnati Business School and learned to operate the comptometer, the first commercially successful key-driven mechanical calculator.
Betsy_Jochum
American actress (1899–1996)
Manchurian Candidate (1962). Before Etterre became an actress, she operated a comptometer at a business in Los Angeles. After that, she became a model, primarily
Estelle_Etterre
Academy in Ascot, Berkshire, England
saw diverse lessons, from recorder playing to hammer forging, from a comptometer-operating class to woodwork and metalwork. A boys’ handicraft class was
Charters_School
Adding machine manufacturer
a key-driven calculator that looked very much like a Felt & Tarrant Comptometer. In 1912, the Burroughs Calculator was $150. Felt & Tarrant sued Burroughs
American_Arithmometer_Company
Scottish economist
working as a stereotyper at the Scottish Daily Express. His mother was a comptometer operator. Having been educated at Bishopbriggs High School and Cheadle
Cam_Donaldson
Town in Wisconsin, United States
Representative and farmer Dorr E. Felt (1862–1930), Inventor of the Comptometer and of the Comptograph, co-founder of the Felt & Tarrant Manufacturing
Newark,_Wisconsin
British singer
Need Him", for Ollie McLaughlin's Carla label. She also worked as a comptometer operator, and met and married football player Karl Sweetan, though the
Ruth_Copeland
Museum in Cambridge, England
items from the early era of computers (and even before) from ageing comptometers through the Altair 8800 to the ZX Spectrum and Apple II. The museum also
Centre_for_Computing_History
British journalist (born 1938)
nothing to do with a musical beat. Virginia gave up her accountancy/comptometer operator job at Woolworth's and worked full-time for £2.10/- a week (also
Bill_Harry
American art dealer (1900–1970)
age of 16, she worked at Bloomingdale's department store, first as a comptometer operator and then as an illustrator in the advertising department. She
Edith_Halpert
Scotland. July 19 – Dorr Eugene Felt receives the first U.S. patent for his comptometer. August – Anna Connelly patents a fire escape. October 18 – Jacob Fitzgerald
1887_in_science
Private junior college in Ohio, US
L. Bair. Programs offered included Junior accounting, secretarial, comptometer, stenographic, and keypunch. In 1980, the Julia Corporation purchased
Ohio_Business_College
Commercial college in Fort Wayne Indiana (c. 1916–1933)
Clerks, Bookkeepers, Chief Accountants, Chief Clerks, Collection Clerks, Comptometer Managers, Correspondents, Office Managers, Private Secretaries, Sales
Anthony_Wayne_Institute
Harriers Gladys Lunn 29 P.O Clerk Birchfield Harriers Ethel Raby 23 Comptometer operator Middlesex LAC , Dorothy Saunders 22 Teacher Spartan LAC Kathleen
England at the 1938 British Empire Games
England_at_the_1938_British_Empire_Games
COMPTOMETER
COMPTOMETER
COMPTOMETER
COMPTOMETER
Female
Scandinavian
Scandinavian form of Old High German Haduwig, HEDVIG means "contending battle."
Female
English
French form of Latin Maria, MARIE means "obstinacy, rebelliousness" or "their rebellion."
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Mythological, Oriya, Sanskrit, Telugu, Traditional
Lord Shiva
Boy/Male
Hindu
Destroyer of demons
Girl/Female
Tamil
Vaijanti | பைஜஂதீ / வைஜஂதீ
Name of a flower
Girl/Female
American, Arabic, British, Celebrity, Christian, English, Finnish, German, Greek, Gujarati, Hindu, Indian, Latin, Lebanese, Malayalam, Muslim, Sindhi, Swedish, Telugu
River; Clay; War Like; Constant; Woman; Holy; Pure; Anointed; Little One; Follower of Christ; An Instrument; Follower of God
Surname or Lastname
English
English : variant of Birkett.Possibly an altered spelling of German Birkert, a variant of Birkner.
Girl/Female
Indian
Compassionate, Merciful
Boy/Male
Teutonic American English
Wise power.
Girl/Female
Teutonic American Danish Scandinavian Swedish
Hero's daughter.
COMPTOMETER
COMPTOMETER
COMPTOMETER
COMPTOMETER
COMPTOMETER