A fog node is a computing device or system positioned between data-producing devices and a central cloud platform. It processes, stores, or manages data closer to where it is generated, reducing the need to send every piece of information to a distant cloud server. Fog nodes can include routers, gateways, local servers, switches, or other capable network devices that provide nearby computing resources.
They are useful when applications need quick responses, continuous processing, or reduced network traffic. A fog node can analyze information locally and send only important or processed data to the cloud. This approach is commonly used in Internet of Things systems, smart buildings, connected vehicles, industrial automation, and other applications where fast and reliable data handling is important.
