It encompasses all the components and technologies involved in transmitting digital data from one location to another, including modems, cables, and other networking equipment.
Examples of common transmission systems people use everyday are: the internet, mobile networks, cordless cables, etc.
The digital format provides a number of benefits over analog transmission systems, including improved signal quality, reduced noise and interference, and increased data accuracy.
These standards ensure that digital transmission systems are compatible and interoperable with each other, regardless of the type of data being transmitted or the geographical location of the sender and receiver.
These techniques are used to improve signal-to-noise ratio, which helps to maintain the integrity of the signal during transmission.