Computer Research Corporation

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The Computer Research Corporation (CRC) was an early developer of minicomputers. It was founded on July 16, 1950.[1]

The founding owners of CRC were Floyd Steele, Donald Eckdahl, Hrant (Harold) Sarkinssian, Richard E. Sprague, and Irving S. Reed.[1] With the exception of Reed, all members of the CRC had been on the design team for the MADDIDA, a special-purpose digital computer developed from 1946 to 1949 for Northrop.[1] Realizing that a problem-oriented language (POL) could be used to make a general-purpose computer function as a differential analyzer, the MADDIDA design team left Northrup in 1950 to focus on designing general-purpose computers, leading to them to found the CRC.[1] After developing the Cadac,[2] an early minicomputer, the CRC was sold to National Cash Register (NCR) in February 1953, launching NCR into the digital computing business.[1]

Computer | Date | Units | Notes

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CRC 101 | 1951 | 1 | A Digital Differential Analyzer (DDA): Unlike general-purpose computers, it was a specialized machine designed specifically for solving differential equations (like Northrop's MADDIDA)
Cadac (CRC 102) | 1951 | 1 (Prototype) | A small-scale general-purpose computer. The prototype featured roughly 195–200 tubes, while the production model (102-A) expanded to 800 tubes. It featured a 12-inch magnetic drum with 1,024 words of memory.[2]
NCR CRC 102-A | 1953 | ~30 | Binary scientific computer with 800 vacuum tubes. NCR's entry into the electronics market after acquiring CRC.

## Notes

1. ↑ 1.0 1.1 1.2 1.3 1.4 Reilly 2003, p. 164.
2. ↑ 2.0 2.1 (in en) The BCSO Review of Science in U.S.A. for the Year Ending .... H.M. Stationery Office. 1951. pp. 19. https://www.google.com/books/edition/The_BCSO_Review_of_Science_in_U_S_A_for/fpZRAQAAMAAJ?hl=en&gbpv=1&bsq=Computer Research Corporation Cadac CRC 101&dq=Computer Research Corporation Cadac CRC 101&printsec=frontcover. "Computer Research Corporation. In little more than a year they have put on the market two new machines. One is another digital differential analyser known as the CRC 101, and the other is a general-purpose computer known as Cadac. This latter machine has been widely acclaimed, and contains only 195 vacuum tubes…"

## References

* Reilly, Edwin D. (2003). Milestones in Computer and Science History. Greenwood Publishing Group.

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