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Calculating Instruments > Mechanical calculators

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Monroe LA5-200 adding machine, 1950 - 1959

No image is publicly available for this object.

Because of the age of the Museum's collection some objects in the Museum's collection have not yet been digitised. Some images are not available for Copyright reasons. Some images are not available for cultural or privacy reasons.

Object statement
Mechanical calculator, Monroe LA5-200 adding machine, metal / plastic, made by Monroe Calculating Machine Company, United States of America, 1950s
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 of 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.
Monroe Calculating Machine Company, USA

 This text content licensed under CC BY-NC.

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.
Made: 1950 - 1959
2010/1/43
Production date
1950 - 1959
Height
162 mm
Width
245 mm

 This text content licensed under CC BY-SA.
Acquisition credit line
Donated through the Australian Government Cultural Gifts Program in memory of Associate Professor Allan Bromley, 2010
Subjects
+ Mathematics
Short persistent URL
Concise link back to this object: http://from.ph/371952
Cite this object in Wikipedia
Copy and paste this wiki-markup:

{{cite web |url=http://from.ph/371952 |title=Monroe LA5-200 adding machine |author=Powerhouse Museum |accessdate=2 September 2014 |publisher=Powerhouse Museum, Australia}}


Copyright
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Object viewed 1374 times. Parent IRN: 1818. Master IRN: 1818 Img: Flv: H:px W:px SMO: RIGHTS:.