Computer Scientist Larry Tesler started working in Silicon Valley in the early 1960s, at a time when computers were inaccessible to the vast majority of people.
The computer world was thankful for his innovations – which has key operations “cut“, “copy” and “paste” – that the PC became easy to learn and use.
Xerox paid him tribute.
“The inventor of cut/copy & glue, find & replace, and much more, was prior Xerox researcher Larry Tesler,” the firm tweeted. “Your workday is simpler thanks to his revolutionary thoughts.”
Mr Tesler was created in 1945, in the Bronx, New York, also analyzed at Stanford University in California.
He specialised – that is, making computer programs.
He worked during his career for a variety of tech companies. He began at Xerox Palo Alto Research Center (Parc), before Steve Jobs poached him Apple, where he spent 17 decades and rose to main scientist.
He worked at Amazon and Yahoo for short periods, and put up an instruction start-up after leaving Apple.
Media captionIn 2012, Larry Tesler and the BBC’s Rory Cellan-Jones talked
In 2012, he told the BBC of all Silicon Valley:”There is practically a rite of passage – once you have made some cash, you do not just retire, you invest your time funds different businesses.
“There is a really powerful element of delight, of being able to share what you’ve heard with another generation.”