The 19th Century: First Programmable Computing Devices Until the 19th century "early computers", probably better described as calculating machines, were basically mechanical devices and operated by hand. Early calculators like the abacus worked with a system of sliding beads arranged on a rack and the centerpiece of Leibniz's multiplier was a stepped-drum gear design. Therefore Charles Babbage's proposal of the Difference Engine (1822), which would have (it was never completed) a stored program and should perform calculations and print the results automatically, was a major breakthrough, as it for the first time suggested the automation of computers. The construction of the Difference Engine, which should perform differential equations, was inspired by Babbage's idea to apply the ability of machines to the needs of mathematics. Machines, he noted, were best at performing tasks repeatedly without mistakes, while mathematics often required the simple repetition of steps. After working on the Difference Engine for ten years Babbage was inspired to build another machine, which he called Analytical Engine. Its invention was a major step towards the design of modern computers, as it was conceived the first general-purpose computer. Instrumental to the machine's design was his assistant, Augusta Ada King, Countess of Lovelace, the first female computer programmer. The second major breakthrough in the design of computing machines in the 19th century may be attributed to the American inventor Herman Hollerith. He was concerned with finding a faster way to compute the U.S. census, which in 1880 had taken nearly seven years. Therefore Hollerith invented a method, which used cards to store data information which he fed into a machine that compiled the results automatically. The punch cards not only served as a storage method and helped reduce computational errors, but furthermore significantly increased speed. Of extraordinary importance for the evolution of digital computers and artificial intelligence have furthermore been the contributions of the English mathematician and logician George Boole. In his postulates concerning the Laws of Thought (1854) he started to theorize about the true/false nature of binary numbers. His principles make up what today is known as Boolean algebra, the collection of logic concerning AND, OR, NOT operands, on which computer switching theory and procedures are grounded. Boole also assumed that the human mind works according to these laws, it performs logical operations that could be reasoned. Ninety years later Boole's principles were applied to circuits, the blueprint for electronic computers, by Claude Shannon.

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body and mind as defects In an increasingly technisised world where technology has also become a determinant of value-free values, mind and body are increasingly considered as "imperfect" compared to the brilliant designs of technology. While for centuries the "weakness" of the human flesh has been the object of lamentations, the 21st century seems set to transform the genre of tragedy into a sober technological project of improvement. Within this project, men and women receive the status of "risk factor" which potentially destabilises technological systems, a circumstance which calls for correction and control measures. Two main ways of checking the risk of "human error", as well as inefficiency, irrationality, selfishness, emotional turbulence, and other weaknesses of human beings: by minimizing human participation in technological processes, and, to an increasing extent, by technically eliminating such risk factors in human beings themselves. Human beings, once considering themselves as the "crown of creation" or the "masters of the world" are reducing themselves to the "human factor" in globally networked technical systems, that factor which still escapes reliable calculation and which, when interacting with fast and potent technical environments, is a source of imperfection. For the human mind and body to perfect itself - to adapt itself to the horizon of perfection of science and technology - takes long time periods of discipline, learning, even biological evolution. In the calculating thinking required in highly technisised context, mind and body inevitably appear as deficient compared to a technology which, unlike the human organism, has the potential of fast and controlled "improvement". Surely, the human organism has always been prey to defects, to "illnesses" and "disablement". Disease has therefore been one of the main motivations behind the development of Bio-ITs: Bio-ITs are being developed to help the blind get their eyesight back, the deaf to hear, the lame to walk, the depressed to be happy. Such medical applications of Bio-ITs are nothing essentially new: Captain Silver's crunch, the wheelchair, a tooth filling save the same basic purpose of correcting a physical deficiency. But there is a much wider scope to this new development, in which the "normal" biological condition of a human being, such as proneness to death, forgetfulness, aging, inefficiency, solitude, or boredom are understood as defects which can and should be corrected. The use of ITs to overcome such "biological" constraints is often seen as the "ultimate" technological advance, even if the history of utopian visions connected to technological innovation is as old as it is rife with surprise, disappointment, and disaster.

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Internet Engineering Steering Group On behalf of the Internet Society, the Internet Engineering Steering Group is responsible for the technical management of the evolution of the architecture, the standards and the protocols of the Net. http://www.ietf.org/iesg.html http://www.ietf.org/iesg.html

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Günther Anders Born in Germany in 1913, Günther Anders spent the Nazi period exiled in the USA where he stayed until 1950. His chief work Die Antiquiertheit des Menschen is an extensive analysis of human existence in a technised world. Among the most outstanding theses of Anders is the concept a permanent gap between the potential of technical artefacts and the human mind's power to imagine the consequences of technology. Men think of themselves as "antiquated" in comparison to their artefacts, and feel "promethean embarrassment". Anders was among the first thinkers to react to the Holocaust and the dropping of the Atomic bomb. The ethical quandaries resulting from the latter are documented in an exchange of letters between Anders and Claude Eatherly, the pilot of the Hiroshima plane, in Burning Conscience.

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