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Ricoh Ricomac 1200D Desktop Calculator

Image Courtesy Takaharu Yoshida

12-digit desktop electronic calculator. 7-segment vacuum-fluorescent display. Early AMI-developed large scale integration (LSI) logic. Selectable fixed decimal point location. Manufactured by AMI's calculator division, Unicom, and sold as an OEM product to Commodore and Ricoh. Marketed by Commodore as the Commodore 412.