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Data packets:
USB communication takes the form of packets. Originally, all packets are sent from the host, using the root hub and possibly more hubs, to components. Some of those packets direct a device to send some packets in reply.
After the sync field discussed above, all packets are made of 8-bit bytes, transmitted least-significant bit first. First byte is a packet identifier (PID) byte. The PID is in fact 4 bits; the byte consists of the 4-bit PID followed by its bitwise complement. It redundancy helps detect errors. (Note that a PID byte contains at most 4 consecutive 1 bits, and consequently will never require bit-stuffing, even when combined with the last 1 bit in the sync byte. though, trailing 1 bits in the PID may need bit-stuffing within the first few bits of the payload.)
Performance Equation of computer system: Following equation is frequently used for expressing a computer's performance ability: The CISC approach tries to minimize the
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What is sector sparing? Low-level formatting also sets aside spare sectors not visible to the operating system. The controller can be told to change each bad sector logically w
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shorte note on hardware description language
structured programming
Illustrate what is pascal's principle? Answer:- Pascal's Principle declares that the pressure is transmitted evenly through a liquid. That's why when you pump up a balloon
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