Category : Pascal Source Code
Archive   : INFOS155.ZIP
Filename : PAGE_16.INF

This page gives low-level information about your current drive, and all
real drives in your system.

INFOPLUS will read the boot sector of the current drive. This gives
information about that drive:

Media: The type of drive (Ramdisks may show up as anything.)

Sectors/cluster: The number of sectors that make up a cluster, the unit
that DOS allocates disk space in.

Bytes/sector: How big those sectors are.

Reserved sectors: How many sectors are set aside for special use.

FATs: File Allocation Tables. DOS uses these tables to keep track of which
clusters are currently in use, free, or bad. Most disks have 2.

Sectors/FAT: How many sectors are needed to hold all the FAT information.

Root directory entries: How many files can be put in the root directory of
the disk. Hard drives usually have 512.

Heads: How many read/write heads are on the disk.

Total sectors: The number of sectors on the drive.

Sectors/track: How many sectors are are on a track. In other words, the
number of pie wedges.

OEM name: A string that is usually in the boot record. Tells which version
of DOS formatted the disk.

Extended boot record: DOS 4 and newer supports an extended record that
contains the volume lable, the serial number, and a
FAT type string.

For each physical drive in the system, you can to get information
on all the drives. Most of the information is the same as the above, with
some extra information:

DPB valid: This lets you know if this information is any good.

Device header: The address of the driver for this disk.

Root directory sector: The sector where the root directory begins.