Originally a maker of
typewriters and later calculators, Commodore is best known for the Commodore PET,
VIC
and Amiga microcomputers. CBM acquired MOS Technologies to provide chip making
capabilities for the PET microcomputers. MOS was renamed to the Commodore
Semiconductor Group (CSG). Chips made by CSG may carry one of three
different logos, the MOS logo, the CBM logo, or the CSG logo. Amiga, Inc. was
later acquired in its infancy and is the design source of the Commodore Amiga
Microcomputer. Chips used in the Amiga were produced by CSG, with the exception
of the Motorola 68000 MPU.
In 1990's CSG began work as
silicon foundry, making chips for other companies. In 1992, CSG ceased chip
making operations and outsourced its own fab work to companies like
HP and Korea's
Anam.