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Robert Selman developed his developmental theory of role-taking ability based on four sources. [4] The first is the work of M. H. Feffer (1959, 1971), [5] [6] and Feffer and Gourevitch (1960), [7] which related role-taking ability to Piaget's theory of social decentering, and developed a projective test to assess children's ability to decenter as they mature. [4]
The late medieval alchemist and proto-Protestant Roger Bacon was purported to have fabricated a brazen head, having developed a legend of having been a wizard. [32] [33] These legends were similar to the Norse myth of the Head of Mímir. According to legend, Mímir was known for his intellect and wisdom, and was beheaded in the Æsir-Vanir War.
The earliest known tool for use in computation was the abacus, developed in the period between 2700 and 2300 BCE in Sumer. [3] The Sumerians' abacus consisted of a table of successive columns which delimited the successive orders of magnitude of their sexagesimal number system.
The history of the Internet originated in the efforts of scientists and engineers to build and interconnect computer networks.The Internet Protocol Suite, the set of rules used to communicate between networks and devices on the Internet, arose from research and development in the United States and involved international collaboration, particularly with researchers in the United Kingdom and France.
The cognitive revolution was an intellectual movement that began in the 1950s as an interdisciplinary study of the mind and its processes, from which emerged a new field known as cognitive science. [1] The preexisting relevant fields were psychology, linguistics, computer science, anthropology, neuroscience, and philosophy. [2]
The first stored-program transistor computer was the ETL Mark III, developed by Japan's Electrotechnical Laboratory [50] [51] [52] from 1954 [53] to 1956. [51] However, early junction transistors were relatively bulky devices that were difficult to manufacture on a mass-production basis, which limited them to a number of specialized applications.
America Online CEO Stephen M. Case, left, and Time Warner CEO Gerald M. Levin listen to senators' opening statements during a hearing before the Senate Judiciary Committee on the merger of the two ...
The first known computer algorithm was written by Ada Lovelace in the 19th century for the Analytical Engine, to translate Luigi Menabrea's work on Bernoulli numbers for machine instruction. [3] However, this remained theoretical only - the lesser state of engineering in the lifetime of these two mathematicians proved insufficient [ citation ...