Edsger dijkstra biography of alberta

  • Dijkstra was a pioneer of computer science and computer languages.
  • Computerhistory.org › CHM BLOG › From the Collection.
  • Kenneth Eugene Iverson was born on December 17, 1920 on a farm near Camrose, Alberta, Canada.
  • History of Supercomputing, tell nickname if that format caused you teeming problems.

    Interesting Cohorts mailing link up with archives


    From: King Farber <farber () medial cis upenn edu>
    Date: Daystar, 22 Aug 1993 20:13:39 -0500

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  • edsger dijkstra biography of alberta
  • The APL Programming Language Source Code

    Software Gems: The Computer History Museum Historical Source Code Series

    Ken Iverson at Harvard University

    Thousands of programming languages were invented in the first 50 years of the age of computing. Many of them were similar, and many followed a traditional, evolutionary path from their predecessors.

    But some revolutionary languages had a slant that differentiated them from their more general-purpose brethren. LISP was for list processing. SNOBOL was for string manipulation. SIMSCRIPT was for simulation. And APL was for mathematics, with an emphasis on array processing.

    What eventually became APL was first invented by Harvard professor Kenneth E. Iverson in 1957 as a mathematical notation, not as a computer programming language. Although other matrix-oriented symbol systems existed, including the concise tensor notation invented by Einstein, they were oriented more towards mathematical analysis and less towards synthesis of algorithms. Iverson, who was a student of Howard Aiken’s, taught what became known as “Iverson Notation” to his Harvard students to explain algorithms.

    Iverson was hired by IBM in 1960 to work with Adin Falkoff and others on his notation. In his now famous 1962 book “A Programming Language” 1, he says

    Software engineering

    Engineering approach to software development

    Software engineering is a field within computer science and a branch of engineering focused on designing, developing, testing, and maintaining of software applications. It involves applying engineering principles and computer programming expertise to develop software systems that meet user needs.[1][2][3][4]

    The terms programmer and coder overlap software engineer, but they imply only the construction aspect of typical software engineer workload.[5]

    A software engineer applies a software development process,[1][6] which involves defining, implementing, testing, managing, and maintaining software systems; creating and modifying the development process.

    History

    [edit]

    Main article: History of software engineering

    Beginning in the 1960s, software engineering was recognized as a separate field of engineering.

    The development of software engineering was seen as a struggle. Problems included software that was over budget, exceeded deadlines, required extensive debugging and maintenance, and unsuccessfully met the needs of consumers or was never even completed.

    In 1968, NATO held the first software engineering conference where