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Ultra DMA, data transfer rate is 16.6MHz x 2 = 33MB/s.
ATA/66, data transfer rate is 16.6MHz x 4 = 66MB/s.
ATA/100, data transfer rate is 16.6MHz x 6 = 100MB/s.
ATA/133, data transfer rate is 16.6MHz x 8 = 133MB/s.
(ATA/133 uses both rising edge and falling edge as ATA/66 but clock cycle time is reduced to 30ns.)
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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.
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Bluetooth is a wireless transferring technology that enables short-range wireless connections between desktop and laptop
computers, personal digital assistants (PDAs), cellular phones, printers, scanners, digital cameras and even home
appliances. The principle of Bluetooth (a chipset) is to transfer information and voices at the frequency of ISM Band. Every
Bluetooth technology devices do come with a standard address for you to connect one-to-one or one-to-seven (to form a
Pico-net), with transferring range up to 10 meters (100 meters to follow), using low power radio. Bluetooth do not only possess
high transfer rate of 1MB/s, it also could be encrypted with pin code. With hopping rate of 1600 hops per second, it's difficult to
be intercepted and are less interrupted by electromagnetic wave.
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EPROM
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Flash
ROM. BIOS controls Input/output devices and other
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