In the 1960s, some strange computers were being tinkered into existence. There was one that operated solely on rolling marbles and gates that flipped open and closed. And in 1967, the manual How to ...

NPR's Scott Simon takes a moment to remember the legacy of computer scientist Larry Tesler, the man who came up the copy-and-paste function. Tesler died this week at the age of 74. A moment now to ...