Rice Institute Computer

The Rice Institute Computer, also known as the Rice Computer[1] or R1, was a 54-bit tagged architecture[2] digital computer built during 1958–1961[3] (partially operational beginning in 1959) on the campus of Rice University, Houston, Texas, United States. Operating as Rice's primary computer until the middle 1960s, the Rice Institute Computer was decommissioned in 1971. The system initially used vacuum tubes and semiconductor diodes for its logic circuits; some later peripherals were built in solid-state emitter-coupled logic. It was designed by Martin H. Graham.[4] A copy of the machine called OSAGE was built and operated at the University of Oklahoma.

  1. ^ Thornton, Adam. "A Brief History of the Rice Computer 1959-1971". Archived from the original on February 24, 2008. Retrieved January 31, 2013. (mostly written in [or before] 1994, and archived by the Wayback Machine on a date indicated [by "20080224"] in the URL)
  2. ^ Feustel, Edward A. (July 1973). "On the Advantages of Tagged Architecture" (PDF). IEEE Transactions on Computers: 644–656. Archived (PDF) from the original on May 23, 2013. Retrieved January 21, 2013., section "II.", "PREVIOUS WORK"
  3. ^ "Computers and Data Processors, North America: 6. The Rice Institute, Computer Project, Houston, Texas". Digital Computer Newsletter. 12 (2): 9–10. Apr 1960.
  4. ^ "Oral-History:Martin Graham - Engineering and Technology History Wiki".