Hardware

Disk drives can be a "physical drive" (the drive you can hold in your hand). A physical drive can then be partitioned into "logical drives" depending on which file systems your OS supports, and the bit-width of your OS. A 64-bit OS will support larger disk partitions than a 32-bit OS, etc.

=General information=


 * 1) Disk partitions from Wikipedia.
 * 2) Hard drive partitions from Microsoft.

=Software=

You will need to use special partition software if you want to change a disk partition. Normally you lose all data when you change a disk partition. Here is some free software.