Browsing by Subject "Calculators"
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Item Oral history interview with Alice R. Burks and Arthur W. Burks(Charles Babbage Institute, 1980-06-20) Burks, Arthur W. (Arthur Walter), 1915-; Burks, Alice R., 1920-Arthur Burks describes his work on the ENIAC and Institute for Advanced Study computers. He reviews his upbringing, education, and work experiences (mainly teaching) before joining the University of Pennsylvania Moore School of Electrical Engineering in 1941. He then discusses his associations with J. Presper Eckert, John Mauchly, John Brainerd, Herman Goldstine, and others and their work at the Moore School. Various aspects of the ENIAC project are discussed in detail: interactions of project members, division of tasks, decision making processes, patenting issues, initial operation, and von Neumann's association with the Moore School and the ENIAC and EDVAC projects. There is a general discussion concerning the classification of general versus special purpose computers and computers versus calculators. Patenting issues concerning the ENIAC project are given particular attention. The Burks discuss the dispersion of ENIAC and EDVAC personnel at the end of World War II. Burks recounts his move to the Institute for Advanced Study in Princeton, his experiences there, and his consulting work with Burroughs prior to accepting a faculty position at the University of Michigan.Item Oral history interview with Carel Sellenraad(Charles Babbage Institute, 1984) Sellenraad, CarelIn this wide-ranging interview, Sellenraad describes his long association with Burroughs Adding Machine Company, and the impact of World Wars I & II on the sales and service of calculators, and adding and bookkeeping machines in Europe. Subjects include: Sellenraad's emigration from Rotterdam, Netherlands to the United States prior to World War I; his employment as a Burroughs salesman after a succession of jobs; his volunteering to serve in the Expeditionary Force and experiences in Europe during World War I; his work in international advertising for Burroughs upon his return to the United States; his return to Rotterdam to work with a Burroughs agency; his management of the Burroughs sales force in the Netherlands after 1938 and through World War II; and conditions in the Netherlands during World War II.Item Oral history interview with Ovid M. Smith(Charles Babbage Institute, 1985-11-07) Smith, Ovid M.Smith reviews his 46 1/2 year career at Burroughs Adding Machine Company (later Burroughs Corporation). Subjects include: Burroughs calculators and accounting machines; Burroughs competitors, especially Moon-Hopkins and Felt & Tarrant; the Comptometer; Burroughs' marketing strategies; and the work environment at Burroughs.Item Update of a Web-Based Economic Impact Calculator for Small and Medium-Sized Airports and a Study of the Economic Impact of Minnesota Airports(Center for Transportation Studies, 2011-01) Gartner, William C.; Tuck, Brigid; Erkkila, Daniel L.This report details the process of updating the Web-based airport economic impact calculator and the calculation of the statewide economic impact of Minnesota’s public airports. The end products of these efforts are: 1) an economic impact calculator that more adequately reflects current economic conditions with added flexibility to handle large, unique airport operations 2) and an estimate of the total economic impact of Minnesota’s airports in 2009. The airport economic impact calculator prompts users to enter data on nine main types of economic activity to calculate the impact of their local airport. These include: public airport operations and capital investments, fixed based operators (FBOs), commercial scheduled air service, retail businesses, general aviation, freight operators, private corporations with flight departments, non-profit and government entities and other activities. The newly updated economic impact calculator allows for greater variability in the size and scale of these airport operations and contains new economic impact coefficients that reflect changes in the economy since the calculator was first developed. These nine activities also contribute to the economy of Minnesota. To calculate the economic impact of the airport system in Minnesota, primary data were collected from airport mangers, FBO’s, corporate flight departments and governmental units. Secondary data were obtained from Minneapolis-St. Paul International, Rochester International, and Duluth International airports to provide a comprehensive economic impact analysis for the state.