Probably the most important contributor concerning the theoretical basis for the digital computers that were developed in the 1940s was
The onset of the Second World War led to an increased funding for computer projects, which hastened technical progress, as governments sought to develop computers to exploit their potential strategic importance.
By 1941 the German engineer Konrad Zuse had developed a computer, the Z3, to design airplanes and missiles. Two years later the British completed a secret code-breaking computer called Colossus to
Also spurred by the war the Electronic Numerical Integrator and Computer (ENIAC), a general-purpose computer, was produced by a partnership between the U.S. government and the University of Pennsylvania (1943). Consisting of 18.000
Concepts in computer design that remained central to computer engineering for the next 40 years were developed by the Hungarian-American mathematician
Characteristic for first generation computers was the fact, that instructions were made-to-order for the specific task for which the computer was to be used. Each computer had a different
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In many traditional Southern countries awe and mystery surround the created object into which the creator projects spirit and soul. Also in contrast with the Western individual-based concept of intellectual property rights it is custom to recognize 'collective', 'communal' or 'folkloric' copyright. Folkloric copyright acknowledges rights to all kinds of knowledge, ideas and innovations produced in 'intellectual commons'. Such rights are not limited to the lifetime of an individual but rather exist in perpetuity with a specific group or an entire people.
Islamic Tradition
Already early Islamic jurists recognized a creator's right or copyright and offered protection against piracy. Traditional Islamic law treats infringement as a breach of ethics, not as a criminal act of theft. Punishment is carried out in the form of defamation of the infringer and the casting of shame on his tribe. Only in recent years many Islamic countries have adopted formal copyright statutes.
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The invention of the steam engine by
In the England of the 18th century five important inventions in the textile industry advanced the
Large-scale machine production was soon applied in many manufacturing sectors and resulted in a reduction of production costs. Yet the widespread use of the novel work-slaves also led to new demands concerning the work force's qualifications. The utilization of machines enabled a differentiated kind of
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An assembly line is an industrial arrangement of machines, equipment, and workers for continuous flow of workpieces in
A transistor is a solid-state device for amplifying, controlling, and generating electrical signals. Transistors are used in a wide array of electronic equipment, ranging from pocket
Fiber-optic cable networks may become the dominant method for high-speed Internet connections. Since the first fiber-optic cable was laid across the Atlantic in 1988, the demand for faster Internet connections is growing, fuelled by the growing network traffic, partly due to increasing implementation of corporate networks spanning the globe and to the use of graphics-heavy contents on the
Fiber-optic cables have not much more in common with copper wires than the capacity to transmit information. As copper wires, they can be terrestrial and submarine connections, but they allow much higher transmission rates. Copper wires allow 32 telephone calls at the same time, but fiber-optic cable can carry 40,000 calls at the same time. A capacity,
Copper wires will not come out of use in the foreseeable future because of technologies as
For technical information from the Encyclopaedia Britannica on telecommunication cables, click
An entertaining report of the laying of the FLAG submarine cable, up to now the longest fiber-optic cable on earth, including detailed background information on the cable industry and its history, Neal Stephenson has written for Wired: Mother Earth Mother Board. Click
Susan Dumett has written a short history of undersea cables for Pretext magazine, Evolution of a Wired World. Click
A timeline history of submarine cables and a detailed list of seemingly all submarine cables of the world, operational, planned and out of service, can be found on the Web site of the
For maps of fiber-optic cable networks see the website of
b. July 1, 1646, Leipzig
d. November 14, 1716, Hannover, Hanover
German philosopher, mathematician, and political adviser, important both as a metaphysician and as a logician and distinguished also for his independent invention of the differential and integral calculus. 1661, he entered the University of Leipzig as a law student; there he came into contact with the thought of men who had revolutionized science and philosophy--men such as
GE is a major American corporation and one of the largest and most diversified corporations in the world. Its products include electrical and electronic equipment, plastics, aircraft engines, medical imaging equipment, and financial services. The company was incorporated in 1892, and in 1986 GE purchased the RCA Corporation including the RCA-owned television network, the National Broadcasting Company, Inc. In 1987, however, GE sold RCA's consumer electronics division to Thomson SA, a state-owned French firm, and purchased Thomson's medical technology division. In 1989 GE agreed to combine its European business interests in appliances, medical systems, electrical distribution, and power systems with the unrelated British corporation General Electric Company. Headquarters are in Fairfield, Conn., U.S.