Data communication Terminology
Data Communication Terminologies
There are several common terminologies used in data
communication literature:
Channel: The word
channel refers to the portion of a link that carries a transmission between a
given pair of lines. One link can have many (n) channels.
Data Rate: The data
rate defines the number data elements (bits) sent in 1 second. The unit is bits
per second (bps).
Signal Rate: The
signal rate is the numbers of signal elements sent in 1 second. The unit is baud.
The data rate is sometimes called the bit rate: the signal rate is sometimes called the pulse rate, the modulation rate, or the baud
rate.
One goal in data communications is to increase the data rate
while decreasing the signal rate. Increasing the data rate increases the speed
of transmission; deceasing the signal rate decreasing the bandwidth
requirement.
Bandwidth:
Bandwidth can be used in two different contexts with two different measuring
values:-
Bandwidth in Hertz:
Bandwidth in hertz is the range of frequencies contained in a composite signal
or the range of frequencies a channel can pass.
Bandwidth in Bits per
Second: The term bandwidth can also be referred as the number of bits per
second that a channel, a link, or even a network can transmit.
what is tx in data communication ?
ReplyDeletexan ka ognehe
Deletetransmitter
DeleteThere are also
ReplyDeletePROTOCOL
HEADER
AND ENCAPSULATION in data communication terms.
qamuska saoweydi
Deleteqamuska saoweydi
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DeletePls tell about brief explanation for communication and network concept
ReplyDeletesignals get weaker when distance between two devices expanded in a larger area.
ReplyDeletename the term used in data communication.