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Andrew S. Tanenbaum was born on March 16, 1944. He is a Dutch-American computer scientist and professor emeritus of computer science at the Vrije Universiteit Amsterdam. Tanenbaum is best known for his work on the MINIX operating system, which he developed as a teaching tool in the 1980s. He is also the author of the textbook Operating Systems: Design and Implementation, which is a standard text in computer science courses.