Douglas Engelbart’s demo was a groundbreaking moment in the history of computing and interaction design. It introduced some key technologies and concepts that are fundamental to how we interact with computers today. The ‘mouse’ he demonstrate, looks just like the mouse we have today, that was definitely revolutionary in human-computer interaction, as he break punch cards and command-line interfaces to a more graphical and user-friendly method.

Another thing worth to mention is the word processing and management demo. Included the ways to edit and organize text, which later influence the development of word processors and modern document management systems.