A cellular network is a type of communication network that uses small, interconnected devices known as cells to communicate with each other. Each cell is equipped with a radio transmitter and receiver that enables it to communicate with other nearby cells. The cells are connected to a central base station, which is responsible for managing the network, including routing calls and exchanging data between cells. Cellular networks are used for a variety of services, including voice calls, text messages, video calls, and data services such as internet access.