Fog Computing

A network architecture in which a substantial amount of computing, communication, and storage takes place at the network edge, at edge devices or nodes that provide entry points into a service provider’s core network (routers, routing switches, and integrated access devices, or IADs, for example). Similar to edge computing, fog computing involves pushing processing capabilities and intelligence closer to where data originates, with the goal of reducing the volume of data being sent to the cloud, decreasing network/Internet latency, and improving system response time. But whereas those processing and other functions are pushed down to the LAN level in fog computing, they’re pushed to devices such as programmable automation controllers, or PACs, in edge computing. (See related topic: edge computing.)


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