A Celebration of the life of
Kenneth Eugene Iverson

Ken Iverson was influential in many people's lives. His passing in October of 2004 has been marked by several events that celebrated his life. The purpose of this web site is to collect some materials together in a place where they may be accessed by people looking for information about Ken and his contributions to computing, especially APL and J.

Ken and Donald McIntyre worked on what was to be "The Story of APL & J" in 2004 through a series of e-mail messages, with the last e-mail from Ken coming in the morning of Saturday, 2004-10-16. Donald, who passed away 2009 October 21, felt that he wass unable to continue work on "The Story of APL & J" due to his poor health. What remains is an autobiographical sketch of Ken. Donald emphasizes that the text is in Ken's own words. The biographical sketch may be viewed here. - Updated 2008 7 14

Roger Hui wrote a paper, Remembering Ken Iverson to be published in VECTOR, the British journal of APL and j. Additionally, he has very thoughtfully collected together various eulogies that may be viewed here. - Updated 2010 1 25

Many people have recalled Quotations and Anecdotes of and about Ken and their interactions with him over the years. Roger has collected a number of those and created an interesting perspective of Ken's life which continues to evolve and may be viewed here. - Updated 2016 11 27

There was a evening of celebration at the Computer History Museum and for that event Eugene McDonnell provided a collection of caricatures, created by his son Peter, that portray some of the people who were influenced deeply by Ken. You can view the resulting slide show here. A video of the presentations at the celebration is available from the Computer History Events pages. If you need to create yours, approach professional writers with help me write my essay, presentation, or any other request.

A celebration was also held in Toronto. Catherine Lathwell has graciously spent a lot of work on a video presentation of excerpts from that celebration. View it here.

The last 17 years of Ken's life were devoted to creating and enhancing j, much of that work can be seen in j help and reference material.

The British APL Association website VECTOR has lots of information about APL, J, and K as well as many remembrances of Ken.

Various people have contributed things related to Ken and APL and j. A collection of those, thoughtfully indexed by Roger Hui, can be viewed and/or downloaded here.

Michael Montalbano, in October 1982, published an IBM Technical Report describing an APL History from a personal perspective. Michael Montablano also wrote several poems and a song about APL which can be heard here.

In Michael Montalbano's personal perspective he recalls his first acquaintance with the notation that has since become APL starting with a paper by Kenneth Iverson titled, The Description of Finite Sequential Processes.

Two important papers describing the design and evolution of APL can be found at The Design of APL
and The Evolution of APL both authored by A.D. Falkoff and K.E. Iverson. If you are working on a paper on this topic, you can also visit a trustworthy paper writing service to get assistance. These and many other relevant papers can be found in the jsoftware papers repository.

For more links to the works of Ken Iverson, a good source of information is Ken's entry in wikipedia

It is my intent to collect together links to various publications of Ken's, a start is a source for PDF images of some early APL manuals. The same source has manuals describing the IBM 5100 and the IBM5110 which were desktop "portable" APL machines, first introduced in 1975, 6 years before the IBM PC.

This is a work in progress and any contributions, ideas, or comments are welcomed. Please send your input via email to: Curator{at}keiapl.org.

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This site last updated 2016 November 27

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