He built the fastest memory chip
Greene became the first African-American cadet to graduate from the Air Force Reserve Officer Training Corps (ROTC) program and rose to become an air force captain before his voluntary retirement. He built high-performance computers for the national security agency as an electronics officer. He also built the fastest memory chip during his time with the Fairchild Semiconductor team.
He began his doctoral research at Santa Clara University while in the Air Force. He obtained his doctorate in electrical engineering in 1970. He was the first African American to be appointed to the position of trustee at the University.
