Commodore 1541
Commodore 1541
(storage)The disk drive used Group Code Recording and contained a6502 processor as a disk controller. Some people wrotecode for it to vibrate the head at different frequencies toplay tunes.
The transfer rate was about 300 bytes per second. The 1541used a bit-serial version of the IEEE 488 parallelprotocol. Some third-party speed-ups could transfer about 4kilobytes per second over the interface, and some "fastloaders" managed up to 10 kbps.
The Commodore 1570 was an upgraded 1541 for use with theCommodore 128.