Severo Ornstein

Severo M. Ornstein (born 1930) is an American computer scientist who in 1955 joined MIT's Lincoln Laboratory as a programmer and designer for the SAGE air-defense system, later joining the TX-2 group and the team that designed the LINC, and moving with that team to Washington University in St. Louis. When ARPA issued a request for proposal for the ARPANET, he joined the group that wrote the winning proposal and was responsible for the design of the communication interfaces and other special hardware for the Interface Message Processor. In 1976 he joined Xerox PARC, where he implemented a computer interface to an early laser printer and later co-led, with Ed McCreight, the team that built the Dorado computer; he also co-designed Mockingbird, the first interactive computer-based music-score editor. In 1980 he was instrumental in starting Computer Professionals for Social Responsibility.