Aaeon VIA Eden Series User Manual page 52

Here is a brief explanation of drive specifications:
Type
: The BIOS contains a table of predefined drive types. Each
defined drive type has a specified number of cylinders,
number of heads, write precompensation factor, landing
zone, and number of sectors. Drives whose specifications
do not accommodate any predefined type are classified as
type USER.
Size
: Disk drive capacity (approximate). Note that this size is
usually slightly greater than the size of a formatted disk
given by a disk-checking program.
Cyls
: Number of cylinders
Head
: Number of heads
Precomp
: Write precompensation cylinder
Landz
: Landing zone
Sector
: Number of sectors
Chapter 3 Award BIOS Setup 43