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• Friden,_Inc. abstract "Friden Calculating Machine Company (Friden, Inc.) was an American manufacturer of typewriters and mechanical, later electronic calculators. It was founded by Carl Friden in San Leandro, California, in 1934. Friden electromechanical calculators were robust and popular.In 1957, Friden purchased the Commercial Controls Corporation of Rochester, New York. This gave them the Flexowriter teleprinter, an electric typewriter capable of being used as part of unit record equipment developed in World War II for the Department of the Navy to automatically type "regret to inform you" letters to the survivors of fallen servicemen, the predecessor to modern computers. The Flexowriter could be attached to Friden calculators and driven by paper tape to produce bills and other form letters which had names of customers and amounts of bills filled in automatically. Friden eventually expanded into production of a few models of early transistorized computers.Friden introduced the first fully transistorized desktop electronic calculator, the model EC-130 in June 1963, designed by Bob Ragen. This machine had a 13-digit capacity and a 5-inch CRT display. It used a magnetostrictive delay line for memory (delay line memory) IEEE First-Hand, to save money on expensive transistors. The EC-130 sold for $2,200, about three times the price of comparable electromechanical calculators of the time. It was the first calculator to use reverse Polish notation (RPN), which eliminated the need for parentheses to specify the order of operations in complex calculations. The successor model EC-132, introduced in April 1965, added a square root function.In 1965 the company was purchased by the Singer Corporation, but continued operation under the Friden brand name until 1974.The Singer – Friden Research Center in Oakland, California, later moved to Palo Alto, California (1965 to 1970), did not come up with an IC-based, truly pocket-sized calculator in time to compete with the corresponding new Japanese products, such as the Busicom, based on Intel 4004 in 1971, Casio Mini and Sharp EL-805 in 1972. In particular, engineer James M. Comstock, working on a pocket calculator project, did not get the necessary priority and support by management to develop such a product.".
• Friden,_Inc. extinctionYear "1965".
• Friden,_Inc. fate "Acquired".
• Friden,_Inc. foundationPlace San_Leandro,_California.
• Friden,_Inc. foundationPlace United_States.
• Friden,_Inc. foundedBy Carl_Friden.
• Friden,_Inc. successor Singer_Corporation.
• Friden,_Inc. thumbnail The_Childrens_Museum_of_Indianapolis_-_Friden_model_132_calculator.jpg?width=300.
• Friden,_Inc. wikiPageExternalLink friden.
• Friden,_Inc. wikiPageExternalLink www.fridenites.com.
• Friden,_Inc. wikiPageExternalLink First-Hand:Liquid_Crystal_Display_Evolution_-_Swiss_Contributions.
• Friden,_Inc. wikiPageExternalLink fri1112.html.
• Friden,_Inc. wikiPageExternalLink friden1152.html.
• Friden,_Inc. wikiPageExternalLink friden1162.html.
• Friden,_Inc. wikiPageExternalLink friden130.html.
• Friden,_Inc. wikiPageExternalLink friden132.html.
• Friden,_Inc. wikiPageExternalLink fridenstw.html.
• Friden,_Inc. wikiPageID "4280224".
• Friden,_Inc. wikiPageLength "5278".
• Friden,_Inc. wikiPageOutDegree "33".
• Friden,_Inc. wikiPageRevisionID "676963984".
• Friden,_Inc. wikiPageWikiLink Bracket.
• Friden,_Inc. wikiPageWikiLink Calculator.
• Friden,_Inc. wikiPageWikiLink Carl_Friden.
• Friden,_Inc. wikiPageWikiLink Category:1934_establishments_in_California.
• Friden,_Inc. wikiPageWikiLink Category:Companies_based_in_San_Leandro,_California.
• Friden,_Inc. wikiPageWikiLink Category:Companies_disestablished_in_1974.
• Friden,_Inc. wikiPageWikiLink Category:Companies_established_in_1934.
• Friden,_Inc. wikiPageWikiLink Category:Electromechanical_calculator_companies.
• Friden,_Inc. wikiPageWikiLink Category:Electronic_calculator_companies.
• Friden,_Inc. wikiPageWikiLink Category:Mechanical_calculator_companies.
• Friden,_Inc. wikiPageWikiLink Cathode_ray_tube.
• Friden,_Inc. wikiPageWikiLink Delay_line_memory.
• Friden,_Inc. wikiPageWikiLink Diode–transistor_logic.
• Friden,_Inc. wikiPageWikiLink Friden_Flexowriter.
• Friden,_Inc. wikiPageWikiLink Hitachi.
• Friden,_Inc. wikiPageWikiLink Hitachi,_Ltd..
• Friden,_Inc. wikiPageWikiLink Nixie_tube.
• Friden,_Inc. wikiPageWikiLink Order_of_operations.
• Friden,_Inc. wikiPageWikiLink Paper_tape.
• Friden,_Inc. wikiPageWikiLink Punched_tape.
• Friden,_Inc. wikiPageWikiLink Reverse_Polish_notation.
• Friden,_Inc. wikiPageWikiLink Rochester,_New_York.
• Friden,_Inc. wikiPageWikiLink San_Leandro,_California.
• Friden,_Inc. wikiPageWikiLink Singer_Corporation.
• Friden,_Inc. wikiPageWikiLink Transistor.
• Friden,_Inc. wikiPageWikiLink Unit_record_equipment.
• Friden,_Inc. wikiPageWikiLink United_States.
• Friden,_Inc. wikiPageWikiLink File:Flexowriter.JPG.
• Friden,_Inc. wikiPageWikiLink File:Friden_calculator.jpg.
• Friden,_Inc. wikiPageWikiLink File:The_Childrens_Museum_of_Indianapolis_-_Friden_model_132_calculator.jpg.
• Friden,_Inc. wikiPageWikiLinkText "Friden Flexowriter".
• Friden,_Inc. wikiPageWikiLinkText "Friden calculator".
• Friden,_Inc. wikiPageWikiLinkText "Friden".
• Friden,_Inc. wikiPageWikiLinkText "Friden, Inc.".
• Friden,_Inc. caption "Friden Model 132 Calculator, 1965".
• Friden,_Inc. fate "Acquired".
• Friden,_Inc. foundation San_Leandro,_California.
• Friden,_Inc. foundation United_States.
• Friden,_Inc. founder Carl_Friden.
• Friden,_Inc. genre "Technology".
• Friden,_Inc. hasPhotoCollection Friden,_Inc..
• Friden,_Inc. logo "300".
• Friden,_Inc. name "Friden, Inc.".
• Friden,_Inc. successor Singer_Corporation.
• Friden,_Inc. type "Private".
• Friden,_Inc. wikiPageUsesTemplate Template:Infobox_company.
• Friden,_Inc. wikiPageUsesTemplate Template:Reflist.
• Friden,_Inc. subject Category:1934_establishments_in_California.
• Friden,_Inc. subject Category:Companies_based_in_San_Leandro,_California.
• Friden,_Inc. subject Category:Companies_disestablished_in_1974.
• Friden,_Inc. subject Category:Companies_established_in_1934.
• Friden,_Inc. subject Category:Electromechanical_calculator_companies.
• Friden,_Inc. subject Category:Electronic_calculator_companies.
• Friden,_Inc. subject Category:Mechanical_calculator_companies.
• Friden,_Inc. hypernym Manufacturer.
• Friden,_Inc. type Agent.
• Friden,_Inc. type Company.
• Friden,_Inc. type Organisation.
• Friden,_Inc. type Organization.
• Friden,_Inc. type Agent.
• Friden,_Inc. type SocialPerson.
• Friden,_Inc. type Thing.
• Friden,_Inc. type Q43229.
• Friden,_Inc. comment "Friden Calculating Machine Company (Friden, Inc.) was an American manufacturer of typewriters and mechanical, later electronic calculators. It was founded by Carl Friden in San Leandro, California, in 1934. Friden electromechanical calculators were robust and popular.In 1957, Friden purchased the Commercial Controls Corporation of Rochester, New York.".
• Friden,_Inc. label "Friden, Inc.".
• Friden,_Inc. sameAs m.0btx5p.
• Friden,_Inc. sameAs Q5503567.
• Friden,_Inc. sameAs Q5503567.
• Friden,_Inc. wasDerivedFrom Friden,_Inc.?oldid=676963984.
• Friden,_Inc. depiction The_Childrens_Museum_of_Indianapolis_-_Friden_model_132_calculator.jpg.
• Friden,_Inc. isPrimaryTopicOf Friden,_Inc..
• Friden,_Inc. name "Friden, Inc.".