In case you still had hope for Windows making some dramatic turnaround, creating a stripped-down version for low-power IoT devices, the writing should have been on the wall for you back when the firm unveiled its Azure Sphere Linux OS. So, if you needed any more convincing that Windows was not for the IoT, Microsoft’s purchase of Express Logic and its ThreadX real-time operating system (RTOS) should really drive the point home. Express Logic is a 23-year old firm, operating out of San Diego. It claims that its ThreadX RTOS has 6.2bn deployments globally, to date, which will clue you in on the type of device that requires an RTOS. Typically, these are microcontroller-powered devices, which use MCUs that have…