The Commodore 65 is a prototype computer created at Commodore Business Machines in 1990–1991. It is an improved version of the Commodore 64, and it was meant to be backwards-compatible with the older
A Commodore 65 prototype
Commodore 65 opened up, revealing its internal disk drive
The Commodore serial bus, is Commodore's interface for primarily magnetic disk data storage and printers for Commodore 8-bit home computers: VIC-20, Commodore 64, Commodore 128, Plus/4, Commodore 16,