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ATA/100 is a new IDE specification under developing. ATA/100 uses both rising edge and falling edge as
time is reduced to 40ns. The data transfer rate is (1/40ns) x 2 bytes x 2 = 100MB/s. To use ATA/100, you need special 80-wire
IDE cable, the same as ATA/66.
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Compared to traditional ATA/100, ATA/133 has been up to 33 percent increase in interface speed with transfer rate of 133MB/s.
ATA/133 performance is ideal for new operating systems, such as Window XP, that demand more storage space and faster data
transfer rates from more responsive computing experiences.
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BIOS is a set of assembly routine/program that reside in
hardware devices of motherboard. In general, to provide hardware independent portability, operation system and drivers is
required to access BIOS without directly access hardware devices.
O
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u
u
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p
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)
EPROM
or
Flash
ROM. BIOS controls Input/output devices and other
96
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ATA/66
but clock cycle
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