Format Data
| Drive | Format | Capacity | Transfer speed |
RPM | Tracks | TPI | Comment |
|---|---|---|---|---|---|---|---|
| 8" SD | 8" SD | 80 kB | 33.333 | 360 | 32 | 48 | Only on old controllers. |
| 5.25" SD | 5.25" SD | 160 kB | 125 | 40 | Only on old controllers. | ||
| 5.25" SD | 5.25" SD | 171 kB | 250 - 308 | 35 | Only on C1541 compatibles. | ||
| 5.25" SD | 5.25" SD | 180 kB | 150 | 40 | Only on old controllers. | ||
| 5.25" DD | 5.25" DD | 360 kB | 250 | 300 | 40 | ||
| 5.25" HD | 5.25" DD | 360 kB | 300 | 360 | 40 | 48 | |
| 5.25" HD | 5.25" HD | 1.2 MB | 500 | 360 | 80 | 96 | Up to 83 tracks. Different biasing current. |
| 5.25" HD | 5.25" HD | 720 kB | 300 | 360 | 80 | Up to 83 tracks. | |
| 3.5" DD | 3.5" DD | 720 kB | 250 | 300 | 80 | 135 | Up to 83 tracks. |
| 3.5" DD | 3.5" DD | 800 kB | 250 | 300 | 80 | Used by C1581. | |
| 3.5" DD | 3.5" DD | 880 kB | 250 | 300 | 80 | Up to 83 tracks. Used by Amiga computers. | |
| 3.5" DD | 3.5" DD | 360 kB | 250 | 300 | 40 | ||
| 3.5" HD | 3.5" DD | 720 kB | 250 | 300 | 80 | Up to 83 tracks. | |
| 3.5" HD | 3.5" HD | 1.44 MB | 500 | 300 | 80 | 135 | Up to 83 tracks. |
| 3.5" HD | 3.5" HD | 1.76 MB | 250 | 300 | 80 | Used by Amiga computers. | |
| 3.5" ED | 3.5" ED | 2.88 MB | 1000 | 300 | 80 | 135 | Up to 83 tracks. |
Sides:
- SS - Single sided
- DS - Double sided
Density:
- SD - Single density (FM)
- DD - Double density (MFM)
- HD - High density
- ED - Extended density (Perpendicular recording)
Read more about this topic: Floppy Disk Controller
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—Susan Sontag (b. 1933)
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