Final answer:
Line coding involves representing digital data as signals, while the baud rate is the rate of transmission in a communication system. The stream '1001001010111000101' can be encoded using NRZ-I, RZ, Manchester, and Differential Manchester encoding systems.
Step-by-step explanation:
Line Coding:
Line coding is the process of representing digital data as signals that can be transmitted over a communication channel. It involves converting the sequence of bits (0s and 1s) into a physical signal such as voltage or current.
Baud Rate:
The baud rate is the rate at which symbols or signal elements are transmitted per second in a communication system. It is also known as the symbol rate.
Encoding the Stream:
NRZ-I encoding: In NRZ-I encoding, a change in signal level represents a 0, and no change represents a 1. So, the stream '1001001010111000101' will be encoded as '0-1-0-0-1-0-1-0-0-1-0-1-1-0-0-0-1-1-0-1'.
RZ encoding: In RZ encoding, a high level signal represents a 1, and a low level signal represents a 0. So, the stream '1001001010111000101' will be encoded as '1-0-0-1-0-0-1-0-1-1-1-0-0-0-1-0-1-0-1'.
Manchester encoding: In Manchester encoding, a transition from low level to high represents a 0, and a transition from high level to low represents a 1. So, the stream '1001001010111000101' will be encoded as '10-01-00-10-01-00-10-10-01-10-10-01-00-00-10-10-01-01'.
Differential Manchester encoding: In Differential Manchester encoding, a transition from low to high or high to low in the middle of a bit represents a 0, while no transition represents a 1. So, the stream '1001001010111000101' will be encoded as '10-11-00-00-10-11-10-10-01-00-10-01-01-11-00-01-10-10-10'.