This course is ultimately aimed to impart fundamental concepts of analog and digital communication systems, which are essential to understand advanced courses like advanced communication system and wireless communication. The course will cover analog modulation techniques such as Amplitude Modulation (AM), Frequency Modulation (FM), and Phase Modulation (PM). Also it allows the students to understand the performance of the continuous wave communication system that uses analog modulation techniques. Further, the course will also cover basic concepts of digital communication systems such as representing a signal in space, information theory and source coding techniques.