terminology – What does “edge” mean when talking about Azure SQL?

Real-time data insights for IoT servers, gateways, and devices

Azure SQL Edge, a robust Internet of Things (IoT) database for edge computing, combines capabilities such as data streaming and time series with built-in machine learning and graph features. Extend the industry-leading Microsoft SQL engine to edge devices for consistent performance and security across your entire data estate, from cloud to edge. Develop your applications once and deploy them anywhere across the edge, your on-premises datacenter, or Azure.