https://medium.com/@suyoggunjal/windows-10-iot-core-on-raspberry-pi-3-8c9ea0861de6

Microsoft’s official description:

Windows has a long history of deployments outside of traditional desktop (or laptop) computers. Embedded versions of Windows existed for a long time, powering check registers, kiosks, outdoor displays and even car entertainment systems. The OS version nomenclature was a subject to change though. For version 10 embedded (i.e. optimized for running on non-PC devices) shed an “embedded” moniker and instead received a trendy “IoT” (i.e. Internet of Things) classifier.