edge - Definition from the Hotspot Shield Glossary
Edge computing is a process that involves networking and how information is stored on that network. In traditional networks and computing systems, information is usually stored in physical devices on the network such as hard drives or servers.
In the edge philosophy information and data may still be kept on physical devices, but these devices will be kept away from the network. Together with physical data storage devices, the web plays an increasingly important role in edge computing with information being stored on web servers - This reduces the need for expensive physical hardware and the limitations that these devices cause. In essence edge computing takes a load away from the network and moves storage to a separate section, thus allowing the network to be more efficient at the more important jobs it needs to complete.