Meteorologist, oceanographer, Python solvem probler, experimenter, Raspberry Pi tinkerer, geek dad, manager, space enthusiast, ham radio lover, science columnist, ADHDer, synthetic intellect curious, linux admin cosplayer.

Three from Whirlwind: Forrester, Everett, Olsen

Biographical research for the MIT Whirlwind I post. The architecture and project history are covered in a separate research file; this document focuses on the people.

Jay Forrester

Birth and Education

Jay Wright Forrester was born on 14 July 1918 on a cattle ranch near Anselmo, in the Sand Hills of central Nebraska. The ranch had no electricity. As a high-school senior, Forrester wired the family property himself, building a wind-driven 12-volt generator out of old car parts and putting his parents’ home on its first electric grid – an act of teenage engineering ingenuity that became one of the founding stories of his career.1

He earned a B.S.E.E. from the University of Nebraska in 1939, then immediately moved east to MIT for graduate work, where he studied servomechanisms under Gordon S. Brown. He completed his M.S. in electrical engineering in 1945.2

WWII and Servomech Lab

From 1940 onward Forrester was a research assistant, then associate director (1944–1951) of MIT’s Servomechanisms Laboratory. During the war he built hydraulic gun-control servomechanisms for radar-stabilized shipboard gun mounts, working with the Navy and the Army.3

In December 1944 the Servomech Lab was asked by the Navy’s Special Devices Center to take on a new contract: the Aircraft Stability and Control Analyzer (ASCA), an analog flight simulator for training bomber crews. Forrester was put in charge of ASCA – the project that would, within two years, become Whirlwind. (The handoff is sometimes loosely associated with Charles Stark Draper, who ran the Instrumentation Laboratory next door at MIT, but the ASCA project came directly to Forrester via Gordon Brown’s Servomech Lab; Draper’s Instrumentation Lab was a separate organization.)4

By summer 1945 Forrester had concluded that analog techniques could not meet the speed and accuracy requirements of a real-time flight simulator. In October 1945 he met Perry O. Crawford Jr., a young MIT engineer and former Navy officer who had been advocating digital methods. Crawford convinced Forrester that digital was the future. By March 1946, Forrester had persuaded the Navy to redirect ASCA into a digital-computing project. It was renamed “Whirlwind.”5

Whirlwind Years 1947–1956

Forrester was project director from the rename through the machine’s full operational period. He hired aggressively from the GI-Bill cohort of postwar electrical engineering students, building a team of about 175 at peak. Whirlwind I came online in March 1951 and was the first general-purpose digital computer to operate in real time – driving an oscilloscope display, accepting live input, and producing output fast enough to control physical systems.6

Forrester’s most consequential hardware contribution was magnetic-core memory. Frustrated by the unreliability of the Williams-tube and electrostatic-storage systems then in use, he sketched the principle of a coincident-current ferrite-core memory in his lab notebook on 13 June 1949. Graduate student William Papian fabricated the first 2x2 test array in October 1950. By August 1953, Whirlwind was running on a 2048-word core memory – doubling its speed, cutting its mean time between failures by an order of magnitude, and slashing operating costs. U.S. Patent 2,736,880 issued to Forrester in 1956. Magnetic core was the dominant random-access memory technology from the mid-1950s through the mid-1970s; MIT collected millions in licensing royalties.7

The 1949–1950 funding crisis is part of the project’s mythology. After the war, the Office of Naval Research had taken over Whirlwind’s funding from the Bureau of Aeronautics. By 1948 Whirlwind was consuming roughly 20% of ONR’s entire research budget with no visible Navy application – the original simulator goal had long since been dropped. ONR began trimming the budget; by 1950 they were ready to cancel outright. The project was rescued in late 1949 when the Soviet atomic-bomb test prompted the Air Force to convene the Air Defense System Engineering Committee under MIT’s George Valley. Valley and Forrester proposed using Whirlwind as the prototype for a continental air-defense computer network. Air Force funding flowed in 1950, the project moved to Lincoln Laboratory, and Whirlwind became the basis for SAGE. From 1951 onward, Forrester led Lincoln Laboratory Division 6, the digital-computer division.8

Pivot to System Dynamics 1956

In 1956, at the height of his engineering reputation, Forrester left digital computing entirely. He joined MIT’s Sloan School of Management as the Germeshausen Professor and spent the next sixty years building a new discipline. His motivation came from a consulting visit to a General Electric appliance plant in Kentucky that puzzled him: inventory and employment swung wildly with cycles of two and three years even though end-customer demand was steady. Forrester recognized the oscillations as the signature of a feedback system with delays – the same mathematics he had used to design servomotors and gun-control loops, now applied to corporate decision-making.9

He called the approach “system dynamics” and spent the next decade building it out. Industrial Dynamics (1961) introduced the field, the bullwhip effect in supply chains, and the Beer Distribution Game (originally the Refrigerator Game) as a teaching tool. Principles of Systems (1968) formalized the methodology. Urban Dynamics (1969) modelled city decay and produced its most controversial finding: that subsidized low-income housing construction worsened the urban crisis it was meant to solve, by attracting more poor residents than the city’s job base could absorb.10

World Dynamics (1971) was Forrester’s most consequential book. He had been invited to a Club of Rome meeting in Bern in 1970 and presented a global model – WORLD2 – of population, food, industrial output, pollution, and non-renewable resources. The Club of Rome commissioned an expansion. Forrester’s student Donella Meadows and her colleagues at MIT built WORLD3 from his framework. The result was The Limits to Growth (1972), which sold 30 million copies in 30 languages and triggered the modern debate over planetary boundaries.11

Honors

  • IEEE Medal of Honor (1972)
  • Inventors Hall of Fame (1979)
  • IEEE Computer Society Computer Pioneer Award (1982)
  • National Medal of Technology (1989, presented by President George H.W. Bush)
  • Computer History Museum Fellow (1995)
  • International Federation of Operational Research Societies Operational Research Hall of Fame (2006)
  • U.S. Patent 2,736,880, magnetic-core memory (1956)12

Anecdotes

Forrester’s management style was famously demanding. Multiple contemporaries described him as someone who would set goals his team thought impossible and then expect them to be met. From his own oral history: “I must say I doubted that they could do it and certainly not in the nine months they said it would take” – about a memory test computer his junior staff had committed to. He noted that they nearly succeeded.13

He retired from MIT Sloan in 1989 but continued working. He served on the board of Digital Equipment Corporation at Ken Olsen’s invitation. He died on 16 November 2016, in Concord, Massachusetts, aged 98. His wife Susan, to whom he had been married 64 years, predeceased him in 2010.14

Robert Everett

Birth and Education

Robert Rivers Everett was born on 26 June 1921 in Yonkers, New York. (The “8 April 1921” date in some early references is incorrect; both Wikipedia and the National Academies’ memorial tribute give 26 June.) He earned a B.S. in electrical engineering from Duke University in 1942 and an M.S. in electrical engineering from MIT in 1943.15

Whirlwind Years

Everett joined MIT’s Servomechanisms Laboratory in 1942 as Forrester’s assistant. He worked on the same wartime hydraulic-servomechanism gun-control programs, then followed Forrester onto ASCA in 1944 and into Whirlwind in 1946. He became associate director of the MIT Digital Computer Laboratory and chief engineer of Whirlwind I. The pairing was deliberate: Forrester was the project’s strategic and political driver; Everett was the engineer who made the hardware work. Where Forrester argued with Pentagon officials, Everett supervised the wiring of vacuum-tube racks at 3 a.m. The two men worked together for four decades.16

In 1956, when Lincoln Laboratory reorganized for the SAGE deployment, Everett succeeded Forrester as head of Division 6 (Lincoln’s digital-computer division). He directed the SAGE air-defense computer system – the AN/FSQ-7, the largest computers ever built, 250 tons each, 49000 vacuum tubes, eventually 24 of them deployed in continental U.S. direction centers.17

MITRE Founding 1958 and Presidency

In 1958, the Air Force decided that SAGE’s continued system-engineering work needed to move out of Lincoln Lab into a dedicated nonprofit. The MITRE Corporation was incorporated on 21 July 1958. Essentially all of Lincoln Division 6 went with the spinoff – “All the people that were working on Sage came with me,” Everett later said. He joined MITRE in October 1958 as its first Technical Director, became Executive Vice President in 1959, and served as President from 1969 to 1986. Under Everett, MITRE grew from the SAGE engineering shop into one of the principal Federally Funded Research and Development Centers in the United States, advising the Air Force, FAA, IRS, and intelligence community.18

Honors

  • IEEE Computer Society Computer Pioneer Award (1987)
  • Department of Defense Medal for Distinguished Public Service (1983)
  • National Medal of Technology (1989, presented by President George H.W. Bush, “for his work in real-time computer technologies and applications”)
  • IEEE Aerospace Electronics Systems Society Pioneer Award (1990)
  • Eugene G. Fubini Award (2009)
  • Computer History Museum Fellow (2009)
  • Member, National Academy of Engineering19

Everett died on 15 August 2018 at Cape Cod, Massachusetts, aged 97.20

Ken Olsen

Birth and Education

Kenneth Harry Olsen was born on 20 February 1926 in Bridgeport, Connecticut, and raised in nearby Stratford. His father Oswald was a Norwegian-American machine-tool designer with several patents to his name; his mother Elizabeth was of Swedish descent. Ken was the second of four children, growing up in a Norwegian-Swedish working-class community. The household was strictly religious – the family attended a small evangelical Protestant congregation and Olsen took his Christianity seriously his whole life. He never drank, smoked, or swore. (The “Pentecostal” label is sometimes attached but is not well documented in published sources – the family’s denominational affiliation is more accurately described as evangelical Protestant. Best to call it “evangelical” or skip the denominational specifier.)21

Olsen worked summer jobs in a local machine shop and repaired radios in the family basement. He served in the U.S. Navy as an electronics technician from 1944 to 1946, then enrolled at MIT on the GI Bill. He earned a B.S.E.E. in 1950 and an M.S.E.E. in 1952.22

Whirlwind Work

While still a graduate student, Olsen joined Forrester’s Whirlwind project in 1950, working in Lincoln Lab’s Division 6 on the magnetic-core memory subsystem. He helped build the Memory Test Computer (MTC), a smaller machine designed specifically to test core-memory ideas before they were committed to Whirlwind itself. Olsen later worked on the TX-0, the first transistorized research computer, completed at Lincoln Lab in 1955-56 as a follow-on to Whirlwind. The TX-0 experience – a fast, interactive, transistor-based machine that researchers used hands-on rather than through batch operators – became the template for everything Olsen built afterward.23

DEC Founding 1957

In 1957 Olsen and Lincoln Lab colleague Harlan Anderson, joined later by Olsen’s brother Stan, decided to leave MIT and build interactive computers commercially. They approached Georges Doriot’s American Research and Development Corporation, the pioneering Boston venture-capital firm. ARD’s offer was $70,000 in equity for 70% of the company plus a $30,000 loan; with no other offers on the table, the founders accepted. Doriot insisted they not call themselves a “computer” company – the conventional wisdom in 1957 was that the computer market was saturated by IBM and a handful of mainframe makers. They incorporated as Digital Equipment Corporation, leased the second floor of an abandoned 19th-century woolen mill in Maynard, Massachusetts, fifteen miles from Lincoln Lab, and started building digital logic modules. ARD’s $70,000 stake in DEC eventually grew to $355 million by 1971 – the founding success story of American venture capital.24

DEC Product Line PDP-1 to VAX

DEC shipped the PDP-1 in November 1959 (production model December 1960) at $120,000 – roughly one-twentieth the price of an IBM mainframe and the first commercial computer designed for interactive use rather than batch operation. MIT’s Tech Model Railroad Club acquired one in 1961 and used it to write Spacewar! (1962), the first widely played digital video game; the PDP-1 is generally credited as the machine that started hacker culture. Only 53 were built but its influence was enormous.25

The PDP-8 (1965, $18,500) was the first true minicomputer in commercial volume – small, rugged, mass-produced, eventually selling more than 50,000 units across many variants. It put a real computer within reach of single university departments, hospital labs, and small engineering firms.26

The PDP-11 (1970) became the most ubiquitous minicomputer of the 1970s, with over 600,000 units sold across multiple decades. Its instruction set influenced the design of the C language and Unix at Bell Labs.27

The VAX 11/780 shipped in October 1977 at about $200,000 – a 32-bit superminicomputer with virtual memory and the operating system VMS. The VAX line dominated mid-range scientific computing through the 1980s. This is the machine that ran the Cane-Zebiak coupled ocean-atmosphere model at Lamont-Doherty for the 1986 ENSO forecast (covered in the previous post): Whirlwind to Olsen to DEC to the VAX 11/780 to the first successful seasonal forecast of an El Nino event. A lineage of about 40 years and one direct line of professional descent.28

Olsen “Home Computer” Quote in Context

The most-quoted thing Ken Olsen ever said is something he probably did not exactly say and certainly did not mean the way it is now used. The standard version is: “There is no reason for any individual to have a computer in their home.” It is invariably cited as a forecasting blunder by the man who refused to see the personal-computer revolution coming.

The actual record is murkier. The remark is attributed to a presentation Olsen gave at the World Future Society convention in Boston in 1977. The earliest known published source is the April 1980 issue of Creative Computing magazine, in a recollection by editor David Ahl, who had previously had professional disagreements with Olsen at DEC. No transcript of the original talk has surfaced.

What Olsen was actually arguing against, in 1977, was the then-fashionable idea of the “home computer” as a single central computer that would automate every aspect of household life – the lights, the heating, the meal-planning, the entertainment, the food inventory. Olsen objected that a household ought not be run by an automation system that resented you for stealing food from the fridge at midnight. He was not arguing against personal computing as we now understand it. By 1977 his own family already used networked DEC time-sharing terminals at home: his wife played Scrabble against the office mainframe, and his son was networking MIT and DEC machines together. In a 1982 interview Olsen explained that anyone could already access a powerful timesharing system and so did not need an individual standalone microcomputer. In 2003 he repeated the clarification.

So: be careful with this. The post should treat the quote as a famous misreading – Olsen lost the historical PR battle but he was not predicting that nobody would ever want a desktop machine.29

Departure 1992 and Death

DEC peaked in 1988 at about $14 billion in revenue and 120,000 employees, briefly the second-largest computer company in the world after IBM. The decline was rapid. The proprietary minicomputer architecture that had built the company was undercut from below by Intel-based PCs and Unix workstations from Sun and Apollo, and from above by larger mainframes. DEC posted its first quarterly loss in 1991. By 1992 employment was being cut to 113800 with a further 15000 to come; DEC was losing money each quarter. The board pressured Olsen to step down, and on 16 July 1992 he announced his retirement at age 66. Robert Palmer, head of the semiconductor division, was named CEO. The company was eventually bought by Compaq in 1998 and absorbed into HP in 2002.30

Olsen retired from technology and devoted his last two decades primarily to philanthropy, especially to Gordon College (a small Christian liberal arts school in Wenham, Massachusetts, where the science centre is named for him). He was famously frugal his entire life: he listed his profession on his IRS forms as “engineer” rather than CEO; he refused a company car and drove an old Ford for years; there were no reserved parking spaces for executives at DEC; he never moved out of the modest house in Lincoln, Massachusetts, that he and his wife Aulikki had bought decades earlier. The DEC offices in Maynard famously had no doors on the cubicles – doors were considered too expensive in the early years and the practice stuck. He died on 6 February 2011 in Indianapolis, Indiana, aged 84.31

His honors:

  • IEEE Founders Medal (1993)
  • Computer History Museum Fellow (1996)
  • National Medal of Technology (1993, with Harlan Anderson)
  • Inducted into the National Inventors Hall of Fame (1990)

References

Notes for the post writer

  • The Forrester ranch electrification story is well attested but specific dates vary – safest to call it “as a teenager” or “in high school” rather than pinning a year.
  • The Forrester-took-ASCA-from-Stark-Draper handoff story is incorrect as stated. ASCA was assigned to Forrester at the Servomech Lab via Gordon Brown; Charles Stark Draper ran a different MIT lab (the Instrumentation Lab). Don’t put Draper into the ASCA handoff.
  • Everett’s birth date is 26 June 1921, not 8 April. The 8 April date in the brief is wrong; correct it.
  • The 1949 ONR cancellation defense story is real but the dramatic-Pentagon-meeting framing is journalistic embellishment in some sources; the actual rescue came via the Air Force’s George Valley committee in late 1949, not a single Forrester pitch. Frame it as “saved by the Soviet bomb test and the Air Force’s air-defense panic,” not “saved by Forrester’s Pentagon presentation.”
  • Olsen’s religious affiliation is sometimes called “Pentecostal” but the better-documented descriptor is simply “evangelical Protestant.” Use “evangelical” if you want a denominational specifier; otherwise just “devout Christian.”
  • The Olsen home-computer quote: do not paraphrase it as a forecasting failure. Frame it as a frequently misread comment about home-automation systems, not personal computing.
  • Everett’s IEEE Computer Pioneer Award is 1987, not 1989. (1989 was the National Medal of Technology.)
  • Olsen co-founder Harlan Anderson is sometimes spelled Harlan Anderson and sometimes credited along with Olsen’s brother Stanley Olsen. Both were genuine co-founders.
  • Olsen’s wife was Aulikki “Eeva-Liisa” Valve, Finnish-born. He married her in 1950. Not Susan (that’s Forrester’s wife).

  1. Concord Free Public Library, “Concord Oral History Program – Jay Forrester,” accessed 2026-04-29; MIT News obituary, “Professor Emeritus Jay Forrester, digital computing and system dynamics pioneer, dies at 98,” 16 November 2016. ↩

  2. MIT News obituary 2016; ETHW (Engineering and Technology History Wiki), “Jay W. Forrester.” ↩

  3. ETHW Forrester biography; Computer Pioneers, “Jay Wright Forrester,” IEEE Computer Society history. ↩

  4. MIT ArchivesSpace, “Servomechanisms Laboratory records,” collection description; Bit by Bit, “Flight Simulators” chapter; “Computer Pioneers: Jay Wright Forrester.” ↩

  5. Wikipedia, “Perry O. Crawford Jr.,” and “Whirlwind I”; Forrester oral history, MIT, with quotation on Crawford’s role in Navy fundraising for digital computing. ↩

  6. MIT Sloan obituary 2016; “The Many Careers of Jay Forrester,” MIT Technology Review, 23 June 2015. ↩

  7. All About Circuits, “Jay W. Forrester and the Invention of Magnetic Core Memory”; U.S. Patent No. 2,736,880 (filed 1951, granted 1956). ↩

  8. They Create Worlds blog, “Whirlwind I” entry, citing ONR budget figures (Whirlwind consumed ~20% of ONR research budget by 1948); MIT Lincoln Laboratory history, “SAGE Semi-Automatic Ground Environment Air Defense System,” lincoln.mit.edu. ↩

  9. MIT Sloan obituary 2016; Forrester, Industrial Dynamics (1961), preface on the General Electric origin story. ↩

  10. Forrester, Industrial Dynamics (1961); Principles of Systems (1968); Urban Dynamics (1969). ↩

  11. Forrester, World Dynamics (1971); Donella H. Meadows, Dennis L. Meadows, Jorgen Randers, William W. Behrens III, The Limits to Growth (Universe Books, 1972). ↩

  12. IEEE Medal of Honor citation 1972; INFORMS biographical profile, “Forrester, Jay W.”; Computer History Museum Fellow citation 1995. ↩

  13. Forrester oral history transcript, MIT. ↩

  14. MIT News obituary 2016. ↩

  15. National Academies Press, Memorial Tributes Volume 23, Robert R. Everett chapter; Wikipedia, “Robert Everett (computer scientist).” ↩

  16. ETHW, “Robert R. Everett”; Lemelson-MIT, “Robert Everett and Jay Forrester.” ↩

  17. Computer Pioneers, “Robert Rivers Everett,” IEEE Computer Society history; SAGE biographical sketch, sage.mitre.org. ↩

  18. SAGE Wisdom transcript, “Everett, Robert,” sage.mitre.org, with Everett quoted on the Division 6 spinoff; Boston Globe obituary, “Robert Everett, computer pioneer who led MITRE Corp., dies at 97,” 28 August 2018. ↩

  19. IEEE Computer Society Computer Pioneer Award listings; Computer History Museum, “Robert Everett” Fellow citation 2009; National Medal of Technology citation 1989. ↩

  20. National Academies Press memorial tribute; Boston Globe obituary 2018. ↩

  21. Wikipedia, “Ken Olsen”; ANBHF (American National Business Hall of Fame), “Ken Olsen” laureate biography; Electronic Design, “Ken Olsen: Faith, Work, And Charity Support A Computing Career.” ↩

  22. Wikipedia, “Ken Olsen”; The DEC Connection, “Ken Olsen, Founder,” decconnection.org. ↩

  23. Computer History Museum, “Digital Equipment Corporation” exhibit; Wikipedia, “Ken Olsen” – Whirlwind and TX-0 work. ↩

  24. Wikipedia, “American Research and Development Corporation,” and “Ken Olsen”; CHM Revolution, “Digital Equipment Corporation”; Glenn Rifkin and George Harrar, The Ultimate Entrepreneur: The Story of Ken Olsen and Digital Equipment Corporation (Contemporary Books, 1988), on the Doriot meeting and Maynard mill. ↩

  25. Wikipedia, “PDP-1”; Computer History Museum, “PDP-1 Restoration”; Eric S. Raymond, “A Brief History of Hackerdom: The Early Hackers,” catb.org. ↩

  26. Wikipedia, “PDP-8.” ↩

  27. Wikipedia, “PDP-11.” ↩

  28. Wikipedia, “VAX-11,” and “VAX 11/780”; cross-reference: Lamont-Doherty research file in this repository, /research/computers/Lamont_Doherty.md. ↩

  29. Quote Investigator, “There is No Reason for Any Individual To Have a Computer in Their Home,” 14 September 2017, with David Ahl’s Creative Computing (April 1980) cited as earliest publication; Snopes, “Ken Olsen” fact-check page; Olsen interview 1982 (cited via Quote Investigator); Olsen 2003 clarification (cited via Quote Investigator). ↩

  30. Computerworld, “Digital Equipment Corp. co-founder Ken Olsen dies at age 84,” 8 February 2011; CBS News, “Computer Pioneer Ken Olsen Dies At Age 84,” 8 February 2011; The Silicon Underground, “What happened to Digital Equipment Corporation?” ↩

  31. Wikipedia, “Ken Olsen”; ANBHF biography; DEC Connection memorial; Boston Herald obituary 2011. ↩