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.
- Commodore 1581
storage Commodore Business Machines’s 3.5 inch disk drive for the Commodore 64 and Commodore 128. The drive stores 800 kilobytes using an MFM format which is different from both messy-dos 720 kb, and the Amiga 880 kb formats. The 1581 supports a poor imitation of directories which are really just partitions and largely unused. It […]
- Commodore 64
computer (C64) An 8-bit Commodore Business Machines personal computer released around September 1981. Prototypes were (apparently) made before Christmas 1980 (and shown at some computer fair). The CPU was a 6510 from MOS Technology (who were a wholly owned subsiduary of Commodore at this time(?)). The C64 had 64 kilobytes of RAM as standard and […]
- Commodore 64dx
- Commodore 65
computer (Or Commodore 64DX, C65, C64DX) The last 8-bit computer designed by Commodore Business Machines, about 1989-1991. The C65 boasts an ugly collection of custom integrated circuits which makes even the Amiga hardware look standard. The core of the C65 chipset is the CSG 4510 and CSG 4569. The 4510 is a 65CE02 with two […]