18 Matching Annotations
  1. Feb 2022
  2. Dec 2021
    1. Jacob Leupold, Theatrum machinarum. Theatrum arithmetico-geometricum, Das ist: Schau-Platz der Rechnen- und Meß-Kunst, vol. 7 (Leipzig, 1727)

      Reference that discusses calculating machines and information processors.

    2. Through an inner structure of recursive links and semantic pointers, a card index achieves a proper autonomy; it behaves as a ‘communication partner’ who can recommend unexpected associations among different ideas. I suggest that in this respect pre-adaptive advances took root in early modern Europe, and that this basic requisite for information pro-cessing machines was formulated largely by the keyword ‘order’.

      aliases for "topical headings": headwords keywords tags categories

    3. In § 3, I explain that to have a life of its own, a card index must be provid-ed with self-referential closure.

      In order to become a free-standing tool, the card index needed to have self-referential closure.

      This may have been one of the necessary steps for the early ideas behind computers. In addition to the idea of a clockwork universe, the index card may have been a step towards early efforts at creating the modern computer.

  3. Mar 2021
  4. May 2020
  5. Apr 2017
  6. Jan 2017
    1. People say that the 1968 Fall Joint Computer Conference in San Francisco was a watershed. After seeing your demonstration, people left that room never thinking about computers the same way again. Would you say that's an accurate encapsulation?

      Reception of the Mother of All Demos

  7. Jan 2016
  8. Dec 2015
    1. In 1980 Joachim Lambek showed that the types and programs used in computerscience form a specific kind of category. This provided a new semantics for talking aboutprograms, allowing people to investigate how programs combine and compose to createother programs, without caring about the specifics of implementation. Eugenio Moggibrought the category theoretic notion of monads into computer science to encapsulateideas that up to that point were considered outside the realm of such theory.
  9. Nov 2015
    1. The Free Software Foundation's definition of free software, originally expressed by Richard Stallman. It is free as in free speech, not as in free beer. Software offered for a fee can still be free. A program is free software if the users have four essential freedoms:

      0. Run the program as you wish, for any purpose.<br> 1. Study the source code, and change it as you please.<br> 2. Copy and distribute the original program.<br> 3. Copy and distribute modified versions.

  10. Sep 2015