MOS Technology
The VIC-II chip was designed primarily by Al Charpentier and Charles Winterble at MOS Technology, Inc. as a successor to the MOS Technology 6560 "VIC". The team at MOS Technology had previously failed to produce two graphics chips named "MOS Technology 6562" for the Commodore TOI computer, and "MOS Technology 6564" for the Color PET, due to memory speed constraints.