Seymour Cray was an American engineer born on September 28, 1925. He is known as the "father of supercomputing" for his work in designing high-performance computers. Cray founded Cray Research, which produced some of the fastest computers in the world during the 1970s and 1980s. His innovations in computer architecture and design have had a lasting impact on the field of computing. Seymour Cray's legacy continues to influence technology and computing advancements.