commodore 1571

from The Free On-line Dictionary of Computing (8 July 2008)

Commodore 1571

   <storage> {Commodore Business Machines}'s "advanced" {disk
   drive} for the {C128}.  It was the double-sided version of the
   {Commodore 1570} disk drive but, unlike the 1570, worked quite
   well.

   The 1571 supported "{burst mode}" loading when used on a C128
   in native mode, which increased the transfer speed from 1541
   speed to about three kilobytes per second (about a 10-fold
   increase).  The 1571 could be told to emulate a {1541} for use
   with a {C64} or 1541 disks.

   Bugs in early releases of the 1571 {ROM} affected access to
   the second side of the disk.

   (1996-04-07)