William Ross Ashby
Regresar a Personajes Fundamentales de la Informática Regresar a www.fgalindosoria.org William
Ross Ashby De Wikipedia, la enciclopedia libre (20120419) “William Ross Ashby (Londres, 1903 - 1972) fue un médico y neurólogo inglés, que contribuyó decisivamente a la consolidación de la cibernética moderna y creó el primer homeostato (1951), dispositivo electrónico autorregulado por retroalimentación. Desde las especialidades de la neurología y la psiquiatría, ofreció la reproducción de la estructura y mecanismos de funcionamiento del cerebro humano en sus obras Proyecto para un cerebro (1952) e Introducción a la cibernética (1956).” http://es.wikipedia.org/wiki/William_Ross_Ashby Homeostat From
Wikipedia, the free encyclopedia (20120419) “The
Homeostat is one of the first devices capable of adapting itself to the
environment; it exhibited behaviours such as habituation, reinforcement and
learning through its ability to maintain homeostasis in a changing environment. It was built by William
Ross Ashby in
1948 at Barnwood
House Hospital.
It was an adaptive ultrastable system, consisting of four interconnected Royal Air Force bomb control units[1] with inputs, feedback, and magnetically driven,
water-filled potentiometers. It illustrated his law of
requisite variety[2] — automatically adapting its configuration to stabilize the effects
of any disturbances introduced into the system. It was the realization of
what he had described in 1946 as an "Isomorphism making machine". …. In 1949
Time described it as "the closest thing to a synthetic brain so far
designed by man".[5] In 1952,
Ashby demonstrated it at the ninth Macy conference on cybernetics.[6] In the same year he published a description of the Homeostat in his
influential book Design for a brain. In total, between 1946 and 1967, he wrote
38 entries about the Homeostat in his journal.” http://en.wikipedia.org/wiki/Homeostat Homeostasis De Wikipedia, la enciclopedia libre Homeostasis (Del griego homo (ὅμος) que significa "similar" y estasis (στάσις) "posición", "estabilidad") es la característica de un sistema abierto o de un sistema cerrado o una conjugación entre ambos, especialmente en un organismo vivo, mediante la cual se regula el ambiente interno (metabolismo), para mantener una condición estable y constante. http://es.wikipedia.org/wiki/Homeostasis Design
for a Brain W. Ross
Ashby Chapman
& Hall, Londres, 1952 http://archive.org/download/designforbrain00ashb/designforbrain00ashb.pdf Design
for a Brain The
origin of adaptive behaviour W. Ross
Ashby http://archive.org/download/designforbrainor00ashb/designforbrainor00ashb.pdf Design
for a brain Author:
Ashby, William Ross Subject:
Brain -- Physiology; Central nervous system -- Mathematical models;
Neurophysiology Publisher:
New York : Wiley 1954 Design
for a brain; the origin of adaptive behavior (1960) Author:
Ashby, William Ross Subject:
Calculators; Central nervous system -- Mathematical models; Behavior; Brain
-- physiology Publisher:
New York, Wiley 1960 An
Introduction To Cybernetics By W. Ross
Ashby http://pespmc1.vub.ac.be/books/IntroCyb.pdf The W.
Ross Ashby Digital Archive William
Ross Ashby (1903-1972) was a British pioneer in the fields of Cybernetics and
Systems Theory. He is best known for the Law of Requisite Variety, for his
books Design for a Brain (1952) and An Introduction to Cybernetics (1956),
and for building the Homeostat. In
January 2003, Ross's daughters gave his archive materials to The British
Library, London. Then, in March 2004, at the end of the W. Ross Ashby
Centenary Conference, they announced that they would make Ross's Journal
available on the Internet. This web site fulfills that promise, making this
previously unpublished work available on-line. |