Some Typical Numbers
Sector size: 512 bytes
Cylinders per disk (tracks per platter): 6962
Platters: 3 - 12
Rotational speed: 10000 RPM
Storage size: 4 - 18 GB
Seek time: 5 - 12 ms
Latency: 3 ms
Transfer rate: 14 - 20 MB/sec
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