Monroe LA5-200 adding machine
Object No. 2010/1/43
This object is part of a collection relating to the history and development of computing and other information technology assembled by Assoc Professor Allan Bromley of Sydney University, comprising calculators, mechanical and electronic analogue computers, computer components, kit computers, education computers, and associated ephemera. Allan Bromley was a lecturer and researcher at the University of Sydney Basser Department of Computer Science from 1978 until his untimely death in August 2002. He specialised in Computer Architecture, Computer Logic and in particular the History of Computing. He was regarded as the world authority on Charles Babbage's Calculating Engines (instigating the rebuilt of DE2 at the Science Museum London) and the Ankithera Mechanism and had extensive knowledge on calculators, analogue computers, logic, stereopsis, totalisators, clocks and time keeping and mechanical engineering.
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Summary
Object Statement
Mechanical calculator, Monroe LA5-200 adding machine, metal / plastic, made by Monroe Calculating Machine Company, United States of America, 1950s
Physical Description
Mechanical calculator, Monroe LA5-200 adding machine, metal / plastic, made by Monroe Calculating Machine Company, United States of America, 1950s This adding machine is made in green and black painted metal. The front face has one hundred numbered keys. On the left side is a red switch. On the left side is three red buttons. The array on the top of the unit is where the calculations are read.
DIMENSIONS
Height
162 mm
Width
245 mm
PRODUCTION
Notes
Monroe Calculating Machine Company, USA
SOURCE
Credit Line
Donated through the Australian Government's Cultural Gifts Program in memory of Associate Professor Allan Bromley, 2010
Acquisition Date
20 January 2010
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