home *** CD-ROM | disk | FTP | other *** search
- FORMAT
-
- To establish a structure on a hard disk or diskette, so that only a specific
- type of computer and operating system can use it. A newly manufactured disk
- has no structure. Before being formatted, a disk can potentially be used by
- an Amiga, Apple, Atari, or IBM-compatible computer (for example).
-
- On a hard disk, a two or three step process is necessary to establish this
- structure. On a diskette, only the last step is necessary. The steps are:
-
- 1. A low-level (hardware-specific) format. This requires a special
- program that knows about the physical characteristics of the hard
- disk. The hardware diagnostic diskette that comes with a computer or
- hard drive will often have such a program on it. The structure this
- program establishes on the disk determines the computer(s) that will
- be able to use the disk. Any existing files on a disk will be
- destroyed by a low-level format.
-
- 2. Partition the disk. An optional step. See the PARTITION definition
- and the FDISK or PART command topics. Any existing files on a hard
- disk will be destroyed if a partition is created.
-
- 3. A high-level (operating system-specific) format. This requires a
- program that knows the specific structure required by an operating
- system. The BACKUP, DISKCOPY, FORMAT, and SELECT programs know what
- the DOS and OS/2 operating systems require. Note that the high-level
- format on 5ΒΌ" double sided diskettes used by DOS 4.0 is not compatible
- with previous versions of DOS. Any existing files on a disk or
- partition will be destroyed by a high-level format.