According to the video, Douglas Engelbart’s demonstration in 1968 was a groundbreaking moment in the history of computing, as it introduced many key concepts that form the foundation of modern computing. A few simple examples are the mouse, GUI, and hyperlinks People first used the mouse as a key operating medium for computers, which allowed them to use it in GUI. GUI, which was born earlier than MacOS and Windows, also demonstrated visual manipulation rather than simply keyboard input to control the PC. At the same time, the existence of hyperlinks can be said to have laid the foundation for the concept of the Web, as it helped people first recognize the idea of “jump forwarding”.