FAST ATA/EIDE: Fast ATA and EIDE are terms that are used more or less interchangeably. The terms stand for "Fast AT Attachment" and "Enhanced Integrated Drive Electronics" respectively. Fast ATA may be identified as ATA-2 if it supports PIO Mode 4 and DMA Mode 2. Fast ATA/EIDE should not be confused with Ultra-IDE, a later technology that further speeds the IDE disk interface.

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