Multiple choice general knowledge science & technology

Who popularized the concept of copyleft, a legal mechanism to protect the modification and redistribution rights for free software?

  1. Linus Torvalds

  2. Andrew S Tanenbaum

  3. Dennis Ritchie

  4. Richard Stallman
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Richard Stallman popularized copyleft as a legal mechanism to protect free software rights. He founded the Free Software Foundation and created the GNU GPL license which uses copyleft to ensure software remains free. Linus Torvalds created Linux, Tanenbaum wrote MINIX, and Ritchie created C.

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