Mobile networks are systems that enable wireless communication between devices, allowing users to connect to the internet and communicate with others on the go. They operate through a series of base stations and antennas that transmit signals to mobile devices, ensuring coverage over vast areas. These networks are categorized into generations, such as 2G, 3G, 4G, and the latest 5G, each offering improvements in speed, capacity, and connectivity. Mobile networks have revolutionized how we communicate, access information, and interact with technology, making them an essential part of modern life.