 The MSD SD-2 dual floppy disk drive | |
| Manufacturer | Micro Systems Development |
|---|---|
| Type | Floppy disk drive |
| Introductory price | $695 (SD-2)[1] |
| Media | 5¼" floppy disk SS SD |
| Operating system | MSD DOS, partially CBM DOS 2.6 compatible. |
| CPU | Rockwell International 6511Q microcontroller @ 1 MHz |
| Memory | 6 kB SRAM (3x 2016), 16kB EPROM (2x 2764)[2][3] |
| Storage | 170 kB per disk – TEC brand (model FB-501)[4] |
| Connectivity | Parallel IEEE-488, Commodore serial IEEE-488 bus (IEC Bus) |
| Backward compatibility | Commodore 64, C128 Commodore PET/CBM, 4000-series, 8000-series, B128 |
| Related | Commodore 1541 & 4040 |
The MSD Super Disk were a series of 5¼-inch floppy disk drives compatible to some degree with the Commodore 1541 disk drive. produced by Micro Systems Development (Dallas, Texas; later MSD Systems) for use with Commodore 8-bit home computers. Two different versions of the MSD Super Disk were available: the single-drive model, SD-1; and the dual-drive model, SD-2.
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- ^ "cbm/firmware/drives/other/msd/".
- ^ "REPAIRS TO THE MSD SD-1 (SINGLE) AND SD-2 (DUAL) DISK DRIVE".