Pioneering developer of the IBM System/360, which helped revolutionize the data processing industry, Bloch is recognized for contributions that earned him the first National Technology Medal from U.S. President Ronald Reagan. On February 19, 1985, Bloch, Frederick P. Brooks and Bob O. Evans became three of the first recipients of that honor, awarded for their roles in developing the IBM System/360.
Commenting in August 1984 on Bloch's imminent September 1 retirement — after 32 years of service — IBM chairman of the board John R. Opel said: "Erich played an early and continuing leadership role in IBM's technology development. His commitment to the enhancement of technical vitality programs will help ensure that IBM people remain on the leading edge of this industry. We will miss him and we wish him well in his new career." Upon retirement, Bloch went on to serve as director of the National Science Foundation in Washington, D.C.
