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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.)
Explain the mechanisms of propagation of radio communication. Radio communication deals along with electronic radiation of electromagnetic energy from one point to other by the
What are the major functions of IO system? i. Interface to the CPU and memory by the system bus. ii. Interface to one or more IO devices by tailored data link.
Q. What is disk access time? The disk access time has two key components: Seek Time: Seek time is the time for disk arm to move heads to the cylinder comprising the desi
Which datatype cannot be used to define parameters. Type F datatype is not used to explain parameters.
How can you provide an alternating color scheme in a Repeater control? AlternatingItemTemplate Like the ItemTemplate element, but rendered for every otherrow (alternating item
How does CPU know that an interrupt has taken place? There needs to be a line or a register or status word in CPU which can be increased on occurrence of interrupt situation.
To work with Internet as well as to utilize its facilities we use certain tools. For illustration, Telnet is a tool, which is utilized for logging on remote computers on the Intern
Cheques vs Credit Cards E-cheques: E-cheques are used for business dealing in e-commerce. Transactions of these cheques take place on Internet. In this system the elect
What do you mean by first fit? First fit allocates the first hole that is big enough. Searching can either begin at the beginning of the set of holes or where the last first-f
Using a combination of uniselectors and two motion selectors draw a schematic of thousand line exchanges. The schematic diagram for such an exchange is demonstrated in Fig. All
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