AWS managed service for securely connecting IoT devices to the cloud, with features for device authentication, message routing, and device shadow state management. Like a central command center that manages billions of device connections and routes their messages to appropriate cloud services.
A smart home company uses IoT Core to connect millions of thermostats and security cameras, routing sensor data to analytics services and commands back to devices.
AWS IoT Core and Azure IoT Hub are managed device connectivity hubs that handle device identity/authentication and bidirectional messaging. Google Cloud retired its native IoT Core, so implementations typically use Pub/Sub plus third-party IoT device management platforms. OCI does not offer a direct IoT device hub service; similar architectures are built using streaming/messaging plus custom device gateways or partner solutions.