Core-board is the structural base and the minimal computer unit. It is a fully functional computer with basic interfaces like HDMI, USB, on-board flash and micro-SD expansion. It can be powered by 5V DC power adapter and has audio codec and Ethernet PHY built in.
Modules can be add to the core-board (or add core-board to module) which provide peripherals, connectivity, user interface, power functionality and features to the embedded computer. The modules can be stackable, expandable and interchangeable to provide different configurations and power requirements.
Application-specific embedded systems created with core-board and selected modules, touch LCD panels and other components for evaluation, development, prototyping or finish products.