Doug Englebright's demonstration was notable for utilizing what technology?

Doug Englebright's demonstration is notably recognized for utilizing microwave linked mouse technology. This concept involved a mouse device that could communicate with a computer through microwave signals, allowing for a novel form of interaction that was innovative for its time. This technology was part of a broader exploration of how devices could be designed to enhance user interaction with computers, offering a glimpse into possibilities that would later evolve into more sophisticated wireless technologies. Utilizing microwave signals allowed for more flexibility and mobility compared to traditional wired devices, paving the way for the development of wireless input devices we commonly use today. The emphasis on unique communication methods distinguishes this demonstration from other technologies like touchscreens or virtual reality, which, while revolutionary in their own rights, focus on different aspects of user experience.