Windows 10 operating system through the Stentrode device. However, they combined this with eye-tracking technology, so it was not entirely controlled through BMI. The eye-tracking was how they moved the mouse cursor, and the BMI was how they clicked the mouse (with several distinct “mouse click actions”). While very basic, this setup allowed the subjects to interface with the computer – to write texts, send messages, and control devices. That may not seem like much, but if you are paralyzed any measure of independence is a big deal. I see this as mainly a proof of concept study – showing that Stentrode can be safe in humans, and can successfully read signals from the brain, sufficient to train a user to click a mouse with their mind. Yes, this is a baby step, but as I have recounted many times before most scientific advances are journeys may of hundreds or thousands of baby steps. I am actually impressed that this technology has progressed as quickly as it has, with a decade from initial concept to successful human trial.