Task: Explanation
Input (English): William Nelson Joy (born November 8, 1954) is an American computer scientist. He co-founded Sun Microsystems in 1982 along with Vinod Khosla, Scott McNealy and Andreas von Bechtolsheim, and served as chief scientist at the company until 2003. He played an integral role in the early development of BSD UNIX while a graduate student at Berkeley, and he is the original author of the vi text editor. He also wrote the 2000 essay "Why the Future Doesn't Need Us", in which he expressed deep concerns over the development of modern technologies. Question: Joy's law was formulated by an American computer scientist who played an integral role in the early development of what? Answer: BSD UNIX
Output (English):  He played an integral role in the early development of BSD UNIX while a graduate student at Berkeley, and he is the original author of the vi text editor.