Cambridge Scientific Center
| Company type | Research facility |
|---|---|
| Industry | Computer science research |
| Founded | February 1964 |
| Fate | Closed in 1992 |
| Headquarters | Cambridge, Massachusetts , United States |
| Products | CP-40, CP/CMS, VM/370 contributions, VNET software |
The IBM Cambridge Scientific Center was a research facility inaugurated in February 1964 in Cambridge, Massachusetts, situated at 545 Technology Square near MIT's Project MAC. Subsequently renamed the IBM Scientific Center, it gained recognition primarily for its development of the CP-40 and the control program elements of CP/CMS, a virtual machine operating system designed for the IBM System/360-67.
History
The IBM Data Processing Division (DPD) established five Scientific Center research teams across the United States and additional groups internationally to engage with academic institutions on projects oriented toward customer needs. These centers functioned independently from IBM’s Research Division located at Yorktown Heights, which concentrated on foundational scientific inquiries. By the late 1960s, DPD Scientific Centers operated in Palo Alto, Houston, Washington, D.C., Philadelphia, Cambridge, and Grenoble, France. The IBM Time-Life Programming Center in New York collaborated closely with these centers but maintained a distinct reporting hierarchy.
Initiated by Norm Rasmussen, the Cambridge Scientific Center formed partnerships with computing departments at MIT and Harvard, sharing facilities with Project MAC and the IBM Boston Programming Center. It also fostered collaborations with MIT Lincoln Laboratory and Brown University.
By 1969, the center was organized into three principal divisions: Computer Graphics led by Craig Johnson, Operations Research headed by John Harmon, and Operating Systems under Richard Parmelee.
In December 1975, Richard MacKinnon took over as director following William Timlake and Rasmussen. Throughout MacKinnon’s 18-year tenure, the center played a pivotal role in advancing the VM/370 operating system—IBM’s premier interactive computing platform. Key contributions included an enhanced scheduler based on Lynn Wheeler’s research; the creation of the VNET networking system by Edson Hendricks and Tim Hartman; support for IBM asymmetric multiprocessors spearheaded by Howard Holley; deployment of IBM’s initial UNIX system running under VM for the National Security Agency; development of remote operations functionality in partnership with the University of Maine; implementation of ASCII terminal access to VM through collaboration with Yale University; and software enabling IBM PCs to connect to both IBM and non-IBM mainframes, led by Jim Perchik.
The VNET software laid the groundwork for IBM’s corporate data network, linking more than 3,000 processors and facilitating the BITNET academic network via cooperation with Yale and CUNY centers. MacKinnon remained at the helm until July 31, 1992, when IBM closed all its scientific centers worldwide.
Selected publications
R. J. Adair et al., "A Virtual Machine System for the 360/40," IBM Corporation, Cambridge Scientific Center, Report No. 320-2007 (May 1966).
R. A. Meyer and L. H. Seawright, "A Virtual Machine Timesharing System," IBM Systems Journal 9, No.3, 199-218 (1970).
R. P. Parmelee et al., "Virtual Storage and Virtual Machine Concepts," IBM Systems Journal 11, No.2, 99-130 (1972).
E. C. Hendricks and T. C. Hartmann, "Evolution of a Virtual Machine Subsystem," IBM Systems Journal 18, No.1, 111-142 (1979).
L. H. Holley et al., "VM/370 Asymmetric Multiprocessing," IBM Systems Journal 18, No.1, 47-70 (1979).
L. H. Seawright and R. A. MacKinnon, "VM/370 - A Study of Multiplicity and Usefulness," IBM Systems Journal 18, No.1, 4-17 (1979).
R. J. Creasy, "The Origin of the VM/370 Time-Sharing System," IBM Journal of Research and Development 25, No.5, 483-490 (September 1981).
F. T. Kozuh et al., "System/370 Capability in a Desktop Computer," IBM Systems Journal 23, No.3, 245-254 (1984).
Y. Bard, "The VM Performance Planning Facility (VMPPF)," Computer Measurement Group Transactions 53, 53-59 (Summer 1986).