An IoT gateway serves as a critical component in network connectivity for Internet of Things (IoT) devices. It acts as an intermediary between IoT devices and the cloud or data processing systems, managing data flow and ensuring seamless communication. The gateway processes incoming data from sensors and devices, filtering and aggregating it before transmission, optimizing bandwidth and power consumption. Additionally, it can implement security protocols to protect data in transit. By facilitating connectivity and data exchange, IoT gateways enable smart applications and enhance the functionality of interconnected devices in various environments, such as smart homes and industrial setups.