Larry Tesler, an early Silicon Valley computer pioneer, died Monday at age 74. Tesler was working at Xerox when Steve Jobs hired him to come work for Apple, where he became the company's chief scientist.
Source: Gizmodo
The copy and paste function, arguably Tesler's most famous impact on computing, first appeared in Apple's software in 1983 on the Lisa computer and the original Macintosh released in 1984.