|
|
SPECIFICATIONS
| SuperDisk Drive |
|
120MB |
1.7MB |
1.44MB |
1.2MB |
1.2MB |
720Kb |
640Kb |
| Total formatted
capacity (bytes) |
125,958,144 |
1,720,320 |
1,474,560 |
1,261,568 |
1,228,800 |
737,280 |
655,360 |
| Sector size
(bytes) |
512 |
512 |
512 |
1024 |
512 |
512 |
512 |
| Total number of
sectors |
246,012 |
3360 |
2880 |
1232 |
2400 |
1440 |
1280 |
| Number of
reassignable spare sectors |
170 |
0 |
0 |
0 |
0 |
0 |
0 |
| Seek times
(including settling), ms: |
|
|
|
|
|
|
|
Average
Track-to-track
Maximum
|
70
20
120 |
70
25
170 |
70
25
170 |
70
25
170 |
70
25
170 |
70
25
170 |
70
25
170 |
| Average
latency, ms |
41.67 |
41.67 |
41.67 |
41.67 |
41.67 |
41.67 |
41.67 |
| Motor speed,
rpm |
720±5% |
720±5% |
720±5% |
720±5% |
720±5% |
720±5% |
720±5% |
| Motor start
time, ms |
800 |
800 |
800 |
800 |
800 |
800 |
800 |
| Track density,
tpi |
2,490 |
135 |
135 |
135 |
135 |
135 |
135 |
| Track width,
µm |
8 |
125 |
125 |
125 |
125 |
125 |
125 |
| Transfer rate,
kb/s: |
|
|
|
|
|
|
|
From diskette
Buffer (maximum)
|
375-680
|
150 |
150 |
125 |
125 |
75 |
75 |
|
