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HPFS
Last modified: Thursday, August 22, 2002 

Short for High Performance File System, a file system created specifically for IBM’s OS/2 to improve upon the limitations of the FAT file system. Among its improvements include support for mixed-case file names and long file names (256 characters as opposed to FAT’s 11 characters), more efficient use of disk space (files are not stored using multiple-sector clusters but on a per-sector basis), an internal architecture that keeps related items close to each other on the disk volume, less fragmentation of data and a centrally-located root directory.

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File Management

related terms

cluster

file allocation table

file management system

OS/2

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