Classify communication services into two categories. Explain main features of each. 

The communication service can be classified into two categories:-

(a.) Mass communication

• The sender and the receiver may be a person, group or the whole population.
• It provides entertainment as well as creates awareness among the masses.
• The means of mass communication are : television, internet, radio ,newspaper etc.

(b.) Personal communication

• The sender and the receiver is a person.
• It is a necessary communication between individuals as man is a social animal.
• Means of personal communication are : mobile, social network site's, letters etc.