implementation The VIC-20 computer and the Commodore 1540 and 1541 floppy drives use the MOS Technology 6522 VIA to handle IEC Bus transmissions. The Commodore 64 and 128 computers and the Commodore 1571 drive use the Complex Interface Adapter. Common devices Devices See also Commodore DOS Commodore 64 peripherals List of device bit rates Commodore 1541 Fast loader Magnetic tape data storage IEEE-488, the original parallel version References External links IEC-bus documentation as used for the 1541-III IEC dissected CBM storage devices Home computer peripherals Commodore 64 VIC-20 Legacy hardware Computer buses Computer connectors Computer storage buses IEEE standards Personal area networks Serial buses