Communication System and its elements Flashcards
What is a Communication System?
A Communication system is a collection of individual communication networks which interconnect and inter-operate to form an integrated communication environment.
What is the purpose of a communication system?
The purpose of a communication system is to facilitate effective communication between the source and the destination.
What are the elements of communication system
Network Components, transmission media, transmission signals and communication resources.
What are network components
The components which are needed to facilitate an effective communication from the source to the destination are referred to as network components. These components help in transferring data from one point to another by using resources. This date may be analogous or digital in nature. In any communication process three elements are essentially needed. they are, sender(creates messages to be transmitted), medium(carries transmitted messages), receiver(receives messages from the source)
What is Transmission Media?
The use of sender-medium-receiver concept has undergone a revolutionary change. Today we have several types of physical channels(communication media) through which data can be transmitted from one point to another
What is wire-based transmission media
In this mode of transmission media, the communicating devices are interconnected via a cable. The signal flows from one device to another through a connecting wire. For example: twisted pair cable, coaxial cable and optical fiber cable
what is wireless transmission
In case of wireless transmission the communicating devices are not connected through wires. the signals from the transmitting device travels through the air in the form of electromagnetic waves to reach the receiving deivce. for eg. radio wave, microwave(in communication satellite)
what is wireless transmission
In case of wireless transmission the communicating devices are not connected through wires. the signals from the transmitting device travels through the air in the form of electromagnetic waves to reach the receiving deivce. for eg. radio wave, microwave(in communication satellite)
