Larry Tesler was a pioneer in human-computer interaction and invented the cut, copy, and paste commands while working for Xerox PARC in the 1970s. These innovations made personal computers far more user-friendly by allowing easy editing and movement of text. Tesler spent his long career working for technology companies like Xerox, Apple, and Amazon, influencing the development of user-friendly interfaces. He passed away in 2020 at the age of 74.