Communication systems are methods and technologies used to transmit information from one place to another. They can include various forms such as telephones, radio, television, and internet. These systems convert messages into signals, which can be sent over distances and then converted back into understandable information by the receiver. These systems can be classified into two main types: analog and digital. Analog systems transmit continuous signals, while digital systems use discrete signals, often resulting in clearer and more reliable communication. Both types play crucial roles in everyday life, enabling personal and professional interactions across the globe.