Forrester, Jay W.

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The development of Whirlwind I, one of the first large-scale high-speed computers, began during World War II as part of a research project to develop a universal flight trainer that would simulate flight (the Aircraft Stability and Control Analyzer project). It was initiated by the Office of Naval Research and began at the Massachusetts Institute of Technology Servomechanisms Laboratory in 1944. Eventually the focus of the grant, a flight simulator (using an analog computer), changed to developing a high-speed digital computer. While building the computer, researcher Jay W. Forrester invented random-access, coincident-current magnetic storage, which became the standard memory device for digital computers. For this he was granted a patent in 1956. Prior to Forrester's discovery, electrostatic storage tubes were used. The introduction and change to magnetic core memory provided high levels of speed and of reliability.

A public announcement was made in late 1951 that the computer known as Whirlwind I was operational and available for scientific and military research. In 1951 Project Whirlwind was detached from the Servomechanisms Lab to become the Massachusetts Institute of Technology Digital Computer Laboratory. Unclassified research projects using the Whirlwind I computer were managed by the Digital Computer Lab staff on the MIT campus, where Whirlwind I occupied the Barta Building (N42), which had been acquired in 1947 to provide sufficient space for the computer as it was designed and constructed. In 1952 staff working on classified projects left to be part of the newly organized Lincoln Laboratory off campus, to form Division 6, Digital Computer Division. Although their projects were classified, the Whirlwind computer itself was not, and remained in the Barta Building. Jay Forrester served as director of both the Digital Computer Laboratory and Division 6, Lincoln Laboratory until 1956, when he became a member of the MIT faculty pursuing interests in system dynamics in management. Robert Everett served as associate director of both labs until he succeeded Forrester as director.

Division 6 – Digital Computer Division was initially comprised of six groups that were primarily concerned with Whirlwind I, Whirlwind II, Cape Cod System, Magnetic Materials, and Storage Tubes. The Division was eventually expanded to nine groups:

Group 60 – Administration and Services Group 61 – System Design Group 62 – ESS Installation Group 63 – Digital Comuter Development Group 64 – ESS Shakedown Testing Group 65 – Vacuum Tubes Group 66 – Special Studies Group 67 – Advance SAGE Program Development Group 68 – System Office

The U.S. Air Force provided substantial financial support for Whirlwind applications and it was a key component in the design of the Air Force's SAGE (Semi-Automatic Ground Environment) air defense system in the 1950s. Research projects at Lincoln Laboratory resulted in the further development of two additional computers, the MTC (memory test computer) and TX-0 (transistor computer), by Group 63 of Lincoln Lab, Division 6.

In July 1958 the MITRE Corporation was incorporated as a non-profit organization to continue classified research and development projects that had transitioned to an operational stage and needed to be phased out of Lincoln Laboratory. Robert Everett joined MITRE at that time as technical director, later serving as president of MITRE from 1969 to 1986.

As described in MIT's Tech Talk, "the Beast" of the Barta Building, the Whirlwind I computer, was shut down on May 29, 1959. It was leased by the Navy to the Wolf Research and Development Corporation of Massachusetts, and was disassembled and moved out of the Barta building in the spring of 1960. Computer artifacts from Whirlwind I and related Whirlwind projects are held by the Massachusetts Institute of Technology Museum and the Computer History Museum, Mountain View, California.

From the guide to the Project Whirlwind Collection, 1944-1959, (Massachusetts Institute of Technology. Institute Archives and Special Collections)

Archival Resources
Role Title Holding Repository
creatorOf Project Whirlwind Collection, 1944-1959 Massachusetts Institute of Technology. Institute Archives and Special Collections
referencedIn International Business Machines Corporation. Technical History Project. Oral histories, 1980-1991. Hagley Museum & Library
referencedIn Massachusetts Institute of Technology, Servomechanisms Laboratory records, 1940-1959 Massachusetts Institute of Technology. Institute Archives and Special Collections
Role Title Holding Repository
Place Name Admin Code Country
Project Whirlwind
DIC 6345
Electronic digital computers--History
Magnetic cores
Whirlwind computer


Birth 1918-07-14





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SNAC ID: 50586519