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A
X
4
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4
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N
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S
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SPD is a small ROM or
EEPROM
timing and chip parameters. SPD can be used by
U
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A
U
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Ultra DMA (or, more accur
computer's dat path (or
a
bus) to the compu er's random access memory (RAM). The Ultra DMA/3 protocol transfers data in
burst mode at a rate of 33.3MB/s, twice as fast as the previous
developed as a proposed industry standard by the Quantum corporation, makes of hard disk drives, and Intel, makes of chipset
t
hat support computer bus technology. Ultra DMA support in your computer means that it will boot (start) and open new
applications more quickly. It will help users of graphic-intens v
the hard disk drive. Ultra DMA uses Cyclical Redundancy Che
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
n
ewly designed USB2.0 has a fancy speed of up to 400Mbps) 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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device resided on the
DIMM
BIOS
to decide best timing for this DIMM or RIMM.
ately, Ultra DMA/33) is a protocol for transferring data between a hard disk drive through the
t
r
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u
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)
r
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B
u
s
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or RIMM. SPD stores memory module information such as DRAM
Direct Access Memory (DMA)
i e and applications that require large amounts of access to data on
cking (CRC), offering a new level of data protection. Ultra DMA
106
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3
interface. Ultra DMA was
(less than 10Mbit/s, but the
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