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IDE - Integrated Drive Electronics
- mass storage device, controller integrated into the disk
- 1 Controller 4 pins, 2 devices
- Speed - 3 MBs
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EIDE- Enhanced Integrated Drive Electronics
- newer version of IDE
- data rate 4-16.6 MBps
- up to 8GB of storage replacing SCIS
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ATA
Known also as IDE, supports one or two hard drives, a 16-bit interface and PIO modes 0, 1 and 2.
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ATA-2
Supports faster PIO modes (3 and 4) and multiword DMA modes (1 and 2). Also supports logical block addressing (LBA) and block transfers. ATA-2 is marketed as Fast ATA and Enhanced IDE (EIDE
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ATA/33
Also called Ultra-DMA/2 , and DMA-33, supports multiword DMA mode 3 running at 33 MBps.
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ATA/66
or Ultra-DMA/4 A new version of ATA proposed by Quantum Corporation, and supported by Intel, that will double ATA's throughput to 66 MBps. Other ATA supports speeds of 100 and 133MB/s
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ATA/133
aka Ultra-DMA/6 currently the fastest IDE hard drive in the market
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Platter
The actual fixed disk within the hard disk drive. There can be several platters within the hard drive
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Heads
Each side of platter
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Tracks
Large sections that completely circle the platter
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Sector
Pie sections on the track
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Cluster
The smallest unit of measurement that a hard disk will read
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Clylinder
Tracks of the same diameter on each platter
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