The document provides a history of human-computer interaction (CHI) from the 1940s to present day. It describes early computers that were programmed via switches and punch cards and processed via batch. It highlights pioneering systems like ENGELBART's NLS system and the Xerox PARC Star user interface. It notes the importance of VisiCalc for popularizing personal computers and Windows and Macintosh for establishing graphical user interfaces. It presents emerging technologies like augmented reality, brain-computer interfaces, and wearable computing as the future of HCI.