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Happy 107th Birthday Grace Murray Hopper (December 9, 1906 – January 1, 1992)


 

By Jueseppi B.

grace-hoppers-107th-birthday-5447077240766464.2-hp gHop

 

 

Grace Murray Hopper (December 9, 1906 – January 1, 1992) was an American computer scientist and United States Navy Rear Admiral. A pioneer in the field, she was one of the first programmers of the Harvard Mark I computer, and developed the first compiler for a computer programming language. She conceptualized the idea of machine-independent programming languages, which led to the development of COBOL, one of the first modern programming languages. She is credited with popularizing the term “debugging” for fixing computer glitches (inspired by an actual moth removed from the computer). Owing to the breadth of her accomplishments and her naval rank, she is sometimes referred to as “Amazing Grace”. The U.S. Navy destroyer USS Hopper (DDG-70) is named for her, as was the Cray XE6 “Hopper” supercomputer at NERSC.

 

Grace Murray Hopper
Commodore Grace M. Hopper, USN (covered).jpg

Hopper in January 1984
Nickname “Amazing Grace”
Born December 9, 1906
New York City,New York, U.S.
Died January 1, 1992(aged 85)
Arlington, Virginia, U.S.
Place of burial Arlington National Cemetery
Allegiance  United States of America
Service/branch  United States Navy
Years of service 1943–1966, 1967–1971,

1972–1986

Rank US-O7 insignia.svg Rear Admiral (lower half)
Awards Defense Distinguished Service ribbon.svg Defense Distinguished

Service Medal
Legion of Merit ribbon.svg Legion of Merit
Meritorious Service ribbon.svg Meritorious Service Medal
American Campaign Medal ribbon.svg American Campaign Medal
World War II Victory Medal ribbon.svg World War II Victory Medal
National Defense Service Medal ribbon.svg National Defense

Service Medal
AFRM with Hourglass Device (Silver).jpg Armed Forces Reserve Medal

with two Hourglass Devices
Naval Reserve Medal ribbon.svg Naval Reserve Medal

 

 

Early life and education

Hopper was born Grace Brewster Murray in New York City. She was the oldest in a family of three children. She was curious as a child, a lifelong trait; at the age of seven she decided to determine how an alarm clock worked, and dismantled seven alarm clocks before her mother realized what she was doing (she was then limited to one clock) For her preparatory school education, she attended the Hartridge School in Plainfield, New Jersey. Rejected for early admission to Vassar College at age 16 (her test scores in Latin were too low), she was admitted the following year. She graduated Phi Beta Kappa from Vassar in 1928 with a bachelor’s degree in mathematics and physics and earned her Master’s degree at Yale University in 1930.

 

In 1934, she earned a Ph.D. in mathematics from Yale under the direction of Øystein Ore. Her dissertationNew Types of Irreducibility Criteria, was published that same year. Hopper began teaching mathematics at Vassar in 1931, and was promoted to associate professor in 1941.

 

She was married to New York University professor Vincent Foster Hopper (1906–1976) from 1930 until their divorce in 1945. She never remarried, and she kept his surname.

 

Career

World War II

In 1943 during World War II, Hopper obtained a leave of absence from Vassar and was sworn into theUnited States Navy Reserve, one of many women to volunteer to serve in the WAVES. She had to get an exemption to enlist; she was 15 pounds (6.8 kg) below the Navy minimum weight of 120 pounds (54 kg). She reported in December and trained at the Naval Reserve Midshipmen’s School at Smith College inNorthampton, Massachusetts. Hopper graduated first in her class in 1944, and was assigned to the Bureau of Ships Computation Project at Harvard University as a lieutenant, junior grade.

 

She served on the Mark I computer programming staff headed by Howard H. Aiken. Hopper and Aiken coauthored three papers on the Mark I, also known as the Automatic Sequence Controlled Calculator. Hopper’s request to transfer to the regular Navy at the end of the war was declined due to her age (38). She continued to serve in the Navy Reserve. Hopper remained at the Harvard Computation Lab until 1949, turning down a full professorship at Vassar in favor of working as a research fellow under a Navy contract at Harvard.

 

UNIVAC

In 1949, Hopper became an employee of the Eckert-Mauchly Computer Corporation as a senior mathematician and joined the team developing the UNIVAC I. In the early 1950′s the company was taken over by the Remington Rand corporation and it was while she was working for them that her original compiler work was done. The compiler was known as the A compiler and its first version was A-0.

 

In 1952 she had an operational compiler. “Nobody believed that,” she said. “I had a running compiler and nobody would touch it. They told me computers could only do arithmetic.”

 

In 1954 Hopper was named the company’s first director of automatic programming, and her department released some of the first compiler-based programming languages, including MATH-MATIC and FLOW-MATIC.

In the spring of 1959, a two-day conference known as the Conference on Data Systems Languages (CODASYL) brought together computer experts from industry and government. Hopper served as the technical consultant to the committee, and many of her former employees served on the short-term committee that defined the new language COBOL. The new language extended Hopper’s FLOW-MATIC language with some ideas from the IBMequivalent, COMTRAN. Hopper’s belief that programs should be written in a language that was close to English rather than in machine code or languages close to machine code (such as assembly language) was captured in the new business language, and COBOL would go on to be the most ubiquitous business language to date.

 

From 1967 to 1977, Hopper served as the director of the Navy Programming Languages Group in the Navy’s Office of Information Systems Planning and was promoted to the rank of captain in 1973. She developed validation software for COBOL and its compiler as part of a COBOL standardization program for the entire Navy.

 

 

Standards

In the 1970s, Hopper advocated for the Defense Department to replace large, centralized systems with networks of small, distributed computers. Any user on any computer node could access common databases located on the network. She pioneered the implementation of standards for testing computer systems and components, most significantly for early programming languages such as FORTRAN and COBOL. The Navy tests for conformance to these standards led to significant convergence among the programming language dialects of the major computer vendors. In the 1980s, these tests (and their official administration) were assumed by the National Bureau of Standards (NBS), known today as the National Institute of Standards and Technology (NIST).

 

Retirement

Hopper retired from the Naval Reserve at age 60, in accordance with Navy attrition regulations, with the rank of commander at the end of 1966. She was recalled to active duty in August 1967 for a six-month period that turned into an indefinite assignment. She again retired in 1971, but was asked to return to active duty again in 1972. She was promoted to captain in 1973 by Admiral Elmo R. Zumwalt, Jr.

 

After Rep. Philip Crane saw her on a March 1983 segment of 60 Minutes, he championed H.J.Res. 341, a joint resolution in the House of Representatives which led to her promotion to commodore by special Presidential appointment. She remained on active duty for several years beyond mandatory retirement by special approval of Congress. In 1985, the rank of commodore was renamed rear admiral, lower half. She retired (involuntarily) from the Navy on August 14, 1986. At a celebration held in Boston on the USS Constitution to celebrate her retirement, Hopper was awarded the Defense Distinguished Service Medal, the highest non-combat decoration awarded by the Department of Defense.

 

At the time of her retirement, she was the oldest active-duty commissioned officer in the United States Navy (79 years, eight months and five days), and aboard the oldest commissioned ship in the United States Navy (188 years, nine months and 23 days). (Admirals William D. LeahyChester W. NimitzHyman G. Rickover and Charles Stewart (1778–1869) were the only other officers in the Navy’s history to serve on active duty at a higher age. Leahy and Nimitz served on active duty for life due to their promotions to the rank of Fleet Admiral.)

 

She was then hired as a senior consultant to Digital Equipment Corporation, a position she retained until her death in 1992, aged 85.

 

Her primary activity in this capacity was as a goodwill ambassador, lecturing widely on the early days of computers, her career, and on efforts that computer vendors could take to make life easier for their users. She visited a large fraction of Digital’s engineering facilities, where she generally received a standing ovation at the conclusion of her remarks. During many of her lectures, she illustrated a nanosecond using salvaged obsolete Bell System 25 pair telephone cable, cut it to 11.8 inch (30 cm) lengths, the distance that light travels in one nanosecond, and handed out the individual wires to her listeners. Although no longer a serving officer, she always wore her Navy full dress uniform to these lectures.

 

The most important thing I’ve accomplished, other than building the compiler, is training young people. They come to me, you know, and say, “Do you think we can do this?” I say, “Try it.” And I back ‘em up. They need that. I keep track of them as they get older and I stir ‘em up at intervals so they don’t forget to take chances.”

 

She was interred with full military honors in Arlington National Cemetery.

 

 

Awards and recognition

 

The Fleet Numerical Meteorology and Oceanography Center is located at 7 Grace Hopper Avenue in Monterey, California.

 

Grace Murray Hopper Park, located on South Joyce Street in Arlington, Virginia, is a small memorial park in front of her former residence (River House Apartments) and is now owned by Arlington County, Virginia.

 

Women at the world’s largest software company, Microsoft Corporation, formed an employee group called Hoppers and established a scholarship in her honor. Hoppers has over 3000 members worldwide.

 

Brewster Academy, a school located in Wolfeboro, New Hampshire, United States, dedicated their computer lab to her in 1985, calling it the Grace Murray Hopper Center for Computer Learning. The academy bestows a Grace Murray Hopper Prize to a graduate who excelled in the field of computer systems. Hopper had spent her childhood summers at a family home in Wolfeboro.

 

An administration building on Naval Support Activity Annapolis (previously known as Naval Station Annapolis) in Annapolis, Maryland is named the Grace Hopper Building in her honor.

 

Building 1482 aboard Naval Air Station North Island, housing the Naval Computer and Telecommunication Station San Diego, is named the Grace Hopper Building.

 

Building 6007, C2/CNT West, Command, control, communications, computers, intelligence, surveillance and reconnaissance, or C4ISR, Center of Excellence in Aberdeen Proving Ground, Maryland is named the Rear Admiral Grace Hopper Building.

 

A named professorship in the Department of Computer Sciences was established at Yale University in her honor. Joan Fiegenbaum was named to this chair in 2008.

 

Grace Hopper’s legacy was an inspiring factor in the creation of the Grace Hopper Celebration of Women in Computing. Held yearly, this conference is designed to bring the research and career interests of women in computing to the forefront.

 

A bridge over Goose Creek joining the north and south sides of the Naval Support Activity Charleston side of Joint Base CharlestonSouth Carolinais named the Grace Hopper Memorial Bridge in her honor.

 

Grace Hopper was awarded 40 honorary degrees from universities worldwide during her lifetime.

 

 

Anecdotes

Throughout much of her later career, Grace Hopper was much in demand as a speaker at various computer-related events. She was well known for her lively and irreverent speaking style, as well as a rich treasury of early war stories. She also received the nickname “Grandma COBOL”.

 

  • While she was working on a Mark II Computer at a US Navy research lab in Dahlgren, Virginia in 1947, her associates discovered a moth stuck in a relay and thereby impeding operation, whereupon she remarked that they were “debugging” the system. Though the term bug had been in use for many years in engineering  to refer to small glitches and inexplicable problems, Admiral Hopper did bring the term into popularity. The remains of the moth can be found in the group’s log book at the Smithsonian Institution’s National Museum of American History in Washington, D.C. 
  • Grace Hopper is famous for her nanoseconds visual aid. People (such as generals and admirals) used to ask her why satellite communication took so long. She started handing out pieces of wire which were just under one foot long (11.80 inches), which is the distance that light travels in one nanosecond. She gave these pieces of wire the metonym “nanoseconds.” She was careful to tell her audience that the length of her nanoseconds was actually the maximum speed the signals would travel in a vacuum, and that signals would travel more slowly through the actual wires that were her teaching aids. Later she used the same pieces of wire to illustrate why computers had to be small to be fast. At many of her talks and visits, she handed out “nanoseconds” to everyone in the audience, contrasting them with a coil of wire nearly a thousand feet long, representing a microsecond. Later, while giving these lectures while working for DEC, she passed out packets of pepper which she called picoseconds.

 

Jay Elliot described Grace Hopper as appearing to be “‘all Navy’, but when you reach inside, you find a ‘Pirate’ dying to be released”.

 

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35 Responses

  1. Fascinating, so many men and women we never hear about who added to our lives in such real ways. She is one worth knowing about, thank you again for your wonderful corner of the world.

  2. […] Happy 107th Birthday Grace Murray Hopper (December 9, 1906 – January 1, 1992) […]

  3. Reblogged this on It Is What It Is and commented:
    A special day indeed. Honor a great woman!!

  4. This is so thorough!! Good job!

  5. Hi there!! Good post!! I’m not copying you … but I’ll write a post w the google doodle!! GM my bro …. 😄

  6. Good morning”. Wow she was quite a woman. It is a great blog”

  7. I remember when my husband worked with COBOL. I showed him your post and he knew her instantly and spoke with reverence of her a a “pioneer.” :)

    • She was, and we never were told/taught about her in any form. Thats sad and bad.

      • The ‘real’ stars to kids now play sports or make movies. Women have regularly been put on the back-burner to showcase men.

        By the way, I shared the pieces about discrimination to my daughters. The one still here had a meltdown because she feels the “Ramirez” name is what is holding her back. I agree. She has a degree in English and is experienced in many areas but for the hundreds of resumes she sends out, she has not gotten a single call. She is considering doing the same thing as the black woman in the article. ~~ I opened a whole can of worms over the weekend. I told my husband and daughter both about being so enraged over Trayvon and telling you I wished I could tear my white skin off. My husband almost cried and my daughter was already bawling.

        I have to behave myself so I can focus to work. You get me riled up ~ and that’s good.

      • Sometimes we must hide who we are to progress to the level that we can proudly shine a bright spotlight on who we are. Tell your daughter that my advice is to use another name, such as your maiden name, until she is solidly cemented in her profession….then kick the cover off who she is and shine like the brightest star in the galaxy.

        It matters not how you reach the end of the journey, but that you complete the journey.

      • We have discussed this and she is proud of her Peruvian heritage – but there remains this ugly little thing called racism and prejudice. I will tell her what you said and encourage her to make the best choice that suits her. Thank you for your wise and kind words.

      • My pleasure…she can accomplish so much more from inside, but she has to play the game to get inside first. Jackie Robinson played the game to get inside, once inside, he changed the game. ;-)

  8. Thank you for this post. I always like to learn the achievements of great women (men too of course but we hear about them more often).

    • I think it’s a crying shame I never heard of Ms. Grace until I stumbled across the Google search engine this morning to see her as the Day’s Icon. Thats so very sad.

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