Computer Hardware Terms, Glossary and Dictionary

Logical Block Addressing (LBA) is a method of accessing hard disk drives. It allows IDE disks larger than 504 megabytes (1024 cylinders) in size to be fully partitioned using the MS-DOS fdisk command. Prior to this technology, ROM BIOS limitations prevented the fdisk command from using an entire hard disk that was larger than 504 megabytes (MB) in size, except by using other controller ROM routines that effectively translate the hard disk's native geometry.

Related Terms

LBR: Logical Blocking Addressing