Data communications:-Data communications are the exchange of data between two devices via some
form of transmission medium such as a wire cable. For data communications to occur,
the communicating device; must be part of a communication system made up of a combination of hardware (physical equipment) and( software (programs). The effectiveness
of a data communications system depends on four fundamental characteristics: delivery. accuracy, nmeimess, and jitter.
i)Delivery. -The system must deliver data to the correct destination. Data must be
received by the intended device or ricer and only by that derive or user
2. Accuracy. -The system must deliver the data accurately. Data that have been
altered in transmission and left uncorrected are unusable.
3. Timeliness- The system must deliver data in a timely manner. Data delivered late are
useless.
4)Jitter. Jitter refers to the variation in the packet arrival time. It is the uneven delay in
the delivery of audio a video packets.
form of transmission medium such as a wire cable. For data communications to occur,
the communicating device; must be part of a communication system made up of a combination of hardware (physical equipment) and( software (programs). The effectiveness
of a data communications system depends on four fundamental characteristics: delivery. accuracy, nmeimess, and jitter.
i)Delivery. -The system must deliver data to the correct destination. Data must be
received by the intended device or ricer and only by that derive or user
2. Accuracy. -The system must deliver the data accurately. Data that have been
altered in transmission and left uncorrected are unusable.
3. Timeliness- The system must deliver data in a timely manner. Data delivered late are
useless.
4)Jitter. Jitter refers to the variation in the packet arrival time. It is the uneven delay in
the delivery of audio a video packets.
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