MOS Technology
| Industry | Semiconductor design and manufacturing | 
|---|---|
| Predecessor | Allen-Bradley | 
| Founded | 1969 | 
| Defunct | 2001 | 
| Successor | Commodore Semiconductor Group Western Design Center | 
| Headquarters | , United States | 
MOS Technology, Inc. ("MOS" being short for Metal Oxide Semiconductor), later known as CSG (Commodore Semiconductor Group) and GMT Microelectronics, was a semiconductor design and fabrication company based in Audubon, Pennsylvania. It is most famous for its 6502 microprocessor and various designs for Commodore International's range of home computers.