Commodore CBM US*121P

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The CBM US*121P is a desktop calculator, with memory function and an electronic printer.

This calculator contains the Mostek MK5013P, MK5014P and MK5015P ICs , which were two of the commercial versions of Mostek's "calculator-on-a-chip", which was the first of its kind released in January 1971. They are date-coded 7218 (MK5014P) and 7245 (MK5015P). The MK5014P controlled the calculator and the MK5015P controlled the printer.

Manufacturer: Commodore
Date: 1972

Other Systems Related To Commodore CBM US*121P:

Item	Manufacturer	Date
Commodore C110	Commodore / Bowman	1971
Commodore Minuteman 3	Commodore	1973
Commodore US*5M Desktop Calculator	Commodore	1973
Commodore 776M	Commodore	1974
Commodore SR-4148R Calculator	Commodore	1974
Commodore LC925 Calculator	Commodore	1975
Commodore SR-9190R Calculator	Commodore	1975
Commodore model P50 Electronic Calculator	Commodore	1975
Commodore SR-1800 Calculator	Commodore	1976
Commodore GL-989R	Commodore	1976
Commodore 9R-25	Commodore	1976
Commodore 796M Calculator	Commodore	1976
Commodore SR-4190R Calculator	Commodore	1976
Commodore LC5K Calculator	Commodore	1977
Commodore P50 Programmable Calculator	Commodore	1978

This exhibit has a reference ID of CH14744. Please quote this reference ID in any communication with the Centre for Computing History.

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