I'm old enough to remember when Microsoft built its own operating systems (maybe not, considering the origins of MS-DOS, Xenix, Windows, and NT, but still...)
"Microsoft has never been shy about being acquisitive, and today it announced it’s buying Express Logic, a San Diego company that has developed a real-time operating system (RTOS) aimed at controlling the growing number of IoT devices in the world.Microsoft delves deeper into IoT with Express Logic acquisition | TechCrunch
The companies did not share the purchase price.
Express Logic is not some wide-eyed, pie-in-the-sky startup. It has been around for 23 years, building (in its own words) “industrial-grade RTOS and middleware software solutions for embedded and IoT developers.” The company boasts some 6.2 billion (yes, billion) devices running its systems. That number did not escape Sam George, director of Azure IoT at Microsoft, but as he wrote in a blog post announcing the deal, there is a reason for this popularity.
“This widespread popularity is driven by demand for technology to support resource constrained environments, especially those that require safety and security,” George wrote."