electromechanical calculator
Date1950-1960
Inventory NumberWJ1042
ClassificationCalculator
Subject
Maker
Monroe Calculating Machine Company
1912-present
Cultural Region
Place of Origin
Dimensions17 x 36 x 29 cm (6 11/16 x 14 3/16 x 11 7/16 in.)
Material
Accessoriespower cord; plastic cover signed "MONROE"
DescriptionCalculator with ten columns of numbers, from 0 (blank) to 9. Addition and subtraction have their own keys. For multiplication and division, a switch needs to be flipped. The above carriage is not static, and is used to display the results of the arithmetical operation. The handle at the right is for reset purposes. The large key in front is turned to start and complete the mechanical movement of the calculator.
Signedon top, and behind: MONROE
ProvenancePsychology Department, William James Hall, Harvard University.
Wang Laboratories, Inc.
Date: 1970
Accessories: cloth instrument cover lined with tissue paper; black power cord; accompanied by central electronic unit (2001-1-003b); two page hand-written note from Peter L. Smith, Research associate, Harvard College Observatory, regarding the donation of the calculator, dated 10 December, 2001 (original and copy in instrument file); photocopy of operation instructions from the bottom panel of calculator unit (in instrument file); printed document on the history of the Wang 360SE by Rick Bensene (in instrument file); printed document on the history of the Want 360SE from Geocity (in instrument file); printed document on the Orbiting Solar Observatories (in instrument file)
Object number: 2001-1-0033a
Kingson
Date: 1960s-early 1970s
Accessories: leather slide case; single sheet of paper with instructions for use folded and inside the leather case
Object number: 1997-1-1927
Frank S. Baldwin
Date: 1897-1907
Accessories: instruction manual (in object file); history of instrument (both in very poor condition)
Object number: 1997-1-0246
Hans W. Egli
Date: circa 1925
Accessories: brush
Object number: 1996-1-0166
Texas Instruments Incorporated
Date: circa 1980
Object number: 1999-1-0072
CASIO Computer Company, Ltd.
Date: 1970-1980
Accessories: vinyl pouch with folded over snap cover and hanging loop; batteries
Object number: 1995-1-0012
Tiger Calculating Machine Company
Date: circa 1945
Object number: 1997-1-0233
International Business Machines Corporation
Date: 1939-1944
Object number: 1997-1-0963a