Edge computing is an architecture intended to reduce latency and open up new applications. The terms around it can be fluid, but are helpful to know.

From the glossary’s introduction:

Edge computing is an architecture which delivers computing capabilities near the site where the data is used or near a data source. In an idealized version of edge computing, servers, processors and data storage arrays can be moved as close to the users as possible. It is an alternative to, or in addition to, using a data center for remote processing. Edge points generate a lot of data, but due to latency and bandwidth limitations all of that data can not always be used.