Answer:
The key features of communication devices are:
Step-by-step explanation:
Communication devices were created by human beings throughout historical evolution. they are devices that generate and receive analog or digital signals, allowing the exchange of information. eg modem router switch GPS etc.
key features are:
Delivery- The system must deliver data to the correct destination. Data must be received by the intended device or user and
only by that device 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. In the case of video and audio,
timely delivery means delivering data as they are produced.
delay. This kind of delivery is called real-time transmission.
4. Jitter- Jitter refers to the variation in the packet arrival time. It is the uneven delay in the delivery of audio or video packets