AMI Mark IV Screamer, Руководство пользователя

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Standard Options,
Continued
Hard Disk Configuration
Hard disk drive types are identified by the following
parameters:
Parameter Description
Type The number designation for a drive with
certain identification parameters.
Cylinders The number of cylinders in the disk drive.
Heads The number of heads.
Write Precompensation The size of a sector gets progressively
smaller as the track diameter diminishes.
Yet each sector must still hold 512 bytes.
Write precompensation circuitry on the
hard disk compensates for the physical
difference in sector size by boosting the
write current for sectors on inner tracks.
This parameter is the track number where
write precompensation begins.
Landing Zone This number is the cylinder location where
the heads will normally park when the
system is shut down.
Sectors The number of sectors per track. Hard
drives that use MFM have 17 sectors per
track. RLL drives have 26 sectors per
track. ERLL and ESDI drives have 34
sectors per track.
Capacity The formatted capacity of the drive based
on the following formula:
(# of heads) X (# of cylinders) X (17
sectors/cylinder) X (512 bytes/sec)