Before revision: Did groundbreaking work in the field of artificial intelligence The Jet Propulsion Laboratory, founded by Theodore von Kármán Bell Laboratories is renowned for the quality of its scientific work .
After revision: and for inventing the operating system Unix, and the programming languages C and C++Did groundbreaking work in the field of artificial intelligence The Jet Propulsion Laboratory, founded by Theodore von Kármán Bell Laboratories is renowned for the quality of its scientific work .