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Monroe 1655 Programmable Scientific Desktop Calculator
Image Courtesy Alex Knight
Programmable (128 step) scientific calculator manufactured by
Computer Design Corporation, marketed by Monroe. Nixie tube display,
10-digits plus 2 digit exponent, floating decimal or scientific mode.
Optional Model CR-1 punched card reader for loading of programs into
program memory.
See the Specification Sheet
on this calculator for more information.
Also visit the Old Calculator Web Museum exhibit on the
Compucorp 122E for more
information about a similar design calculator marketed by Computer
Design Corp. (Compucorp).