IoT is not Linux. Most small embedded devices cannot afford a MMU, or the monstrosity of Linux. Baremetal or FreeRTOS/ThreadX or similar are enough. They don't

IoT is not Linux. Most small embedded devices cannot afford a MMU, or the monstrosity of Linux. Baremetal or FreeRTOS/ThreadX or similar are enough. They don't need that much power, architectural overkill and security nightmares. Most of them are even formally verified.