What is noise? How does it affect the communication?
With the introduction of electrical and electro mechanical hardware to the communication system affects the data to be transferred. The transmission data incurs losses as it moves away from the source to its destination. Since it is energy, which at first is concentrated, spreads out over a larger area as the pressure wave moves away from the source. It loses its potential due to the inelastic way that air molecules collide with one another internally. These losses affect the distance of transmission, quality of received data and mainly the medium of communication. There are ways to amplify the signal as it leaves the source at a predetermined distance of communication lines, but even this limits the transmission to distances of 3000 feet or less. Transmitting sound over longer distances requires a system which is highly sophisticated in design and infrastructure. Explain Network Structure in a Telephone A simple telephone network communication can be established by running metal wires
