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  CNET GLOSSARY: Terms for the techie
LBA
logical block addressing A hard disk sector addressing scheme built into the Enhanced IDE (EIDE) drive standard that allows PCs to use hard drives larger than 528MB. A logical block address is a 28-bit value that maps to a specific cylinder-head-sector address on the disk; this allows enough variation to permit use of hard disks of up to 8.4GB. 
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