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UltraATA (or, more accurately, UltraATA/33) is a protocol for transferring data between a hard disk drive through the computer's
data path (or bus) to the computer's random access memory (RAM). The UltraATA/33 protocol transfers data in burst mode at a
rate of 33.3MB/s, twice as fast as the previous
industry standard by the Quantum corporation, makes of hard disk drives, and Intel, makes of chipset that support computer bus
technology. UltraATA support in your computer means that it will boot (start) and open new applications more quickly. It will help
users of graphic-intensive and applications that require large amounts of access to data on the hard disk drive. UltraATA uses
Cyclical Redundancy Checking (CRC), offering a new level of data protection. UltraATA uses the same 40-pin IDE interface
cable as PIO and DMA.
16.6MB/s x2 = 33MB/s
16.6MB/s x4 = 66MB/s
16.6MB/s x6 = 100MB/s
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USB is a 4-pin serial peripheral bus that is capable of cascading low/medium speed peripherals (less than 10Mbit/s) such as
keyboard, mouse, joystick, scanner, printer and modem. With USB, the traditional complex cables from back panel of your PC
can be eliminated.
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Direct Memory Access (DMA)
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interface. UltraATA was developed as a proposed
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