Communication needs of the society must be met for the existence of the society. Primitive society had sentinels that scanned the environment and repeated dangers. Council of elders interpreted facts and made decisions.
Tribal meetings were used to transmit these decisions to the rest of the group. As society became larger and more complex, these jobs also became big and complex to be handled by single individuals. With the advent of technology, these jobs were taken over by the mass media. The major functions of mass communication are :
1. Surveillance
2. Interpretation
3. Transmission of values
4. Lineage
5. Entertainment.
The functions served by mass communication are very similar to those fulfilled by others types of communications. The way mass communication performs these function is discussed here.