The definition of 65xx

The 65xx series of processors includes the 6502, 65C02, 6510, 8502, 65C816, 65C816S, etc. It is a CISC design and is not being used in too many new stand-alone computer systems, but is still being used in embedded systems, game systems (such as the Super NES), and processor enhancement add-ons for older systems. It was originally designed by MOS Technologies, but is now produced by The Western Design Center, Inc. It was the primary processor for many extremely popular systems no longer being produced, including the Commodore 64, the Commodore 128, and all the Apple ][ series machines.