Xerox, where Mr Tesler spent part of his career, paid tribute to him.
Pioneering computer scientist Larry Tesler, who invented cut/copy & paste, find & replace, has passed away at the age of 74.
Tesler, who breathed his last on Monday, pioneered the concept of "cut-copy-paste" during his time at the Xerox Palo Alto Research Centre in the 1970s.
The concepts would later become instrumental user interface building blocks for both text editors and entire computer operating systems (OS).
The advent of the personal computer wasn't just about making these powerful machines available to everyone, it was also about making them accessible and usable, even for those lacking a computer science degree. After working in AI research, he joined Xerox's Palo Alto Research Center (PARC) in 1973, where he developed cut, copy, and paste ( scientifically known as gypsy ) which is used to remove, duplicate and reposition texts.
"Your workday is easier thanks to his revolutionary ideas", Xerox tweeted Thursday to honor Tesler. The cause of his death wasn't immediately available.
In addition to his contributions to some of Apple's most famous hardware, Tesler was also known for his efforts to make software and user interfaces more accessible.
Tesler was born in NY and attended Stanford University, where he received a degree in mathematics in 1965.
Tesler left Xerox to work for Apple in 1980 after he was recruited by its late co-founder Steve Jobs. In 1993, he was promoted as the chief scientist of Apple.
He went on to establish an education startup and do stints in user-experience technology at Amazon and Yahoo.
After leaving Apple and Yahoo!, as of 2009, he was an independent consultant and lived with his wife in the Silicon Valley area with his wife.