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Z4 (computer)
The Z4 was arguably the world's first commercial digital computer, and is the oldest surviving programmable computer. It was designed, and manufactured by early computer scientist Konrad Zuse's company ''Zuse Apparatebau'', for an order placed by Henschel & Son, in 1942; though only partially assembled in Berlin, then completed in Göttingen in the Third Reich in April 1945, but not delivered before the defeat of Nazi Germany, in 1945. The Z4 was Zuse's final target for the Z3 (computer), Z3 design. Like the earlier Z2 (computer), Z2, it comprised a combination of mechanical memory and Electromechanics, electromechanical logic. The Z4 was used at the ETH Zurich from 1950 to 1955, also serving as the inspiration for the construction of the ERMETH, the first Swiss computer, created under the direction of ETH engineer Ambros Speiser. Construction The Z4 was very similar to the Z3 (computer), Z3 in its design but was significantly enhanced in a number of respects. The memory consis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deutsches Museum
The Deutsches Museum (''German Museum'', officially (English: ''German Museum of Masterpieces of Science and Technology'')) in Munich, Germany, is the world's largest museum of science museum, science and technology museum, technology, with about 125,000 exhibited objects from 50 fields of science and technology. It receives about 1.5 million visitors per year. The museum was founded on 28 June 1903, at a meeting of the Verein Deutscher Ingenieure, Association of German Engineers (VDI) as an initiative of Oskar von Miller. It is the largest museum in Munich. For a period of time the museum was also used to host pop and rock concerts including The Who, Jimi Hendrix and Elton John. Museumsinsel The main site of the Deutsches Museum is a small island in the Isar river, which had been used for rafting wood since the Middle Ages. The island did not have any buildings before 1772 because it was regularly flooded prior to the building of the Sylvensteinspeicher. In 1772 the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electromechanics
Electromechanics combine processes and procedures drawn from electrical engineering and mechanical engineering. Electromechanics focus on the interaction of electrical and mechanical systems as a whole and how the two systems interact with each other. This process is especially prominent in systems such as those of DC or AC rotating electrical machines which can be designed and operated to generate power from a mechanical process (Electric generator, generator) or used to power a mechanical effect (Electric motor, motor). Electrical engineering in this context also encompasses electronic engineering, electronics engineering. Electromechanical devices are ones which have both electrical and mechanical processes. Strictly speaking, a manually operated switch is an electromechanical component due to the mechanical movement causing an electrical output. Though this is true, the term is usually understood to refer to devices which involve an electrical signal to create mechanical mov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Göttingen
Göttingen (, ; ; ) is a college town, university city in Lower Saxony, central Germany, the Capital (political), capital of Göttingen (district), the eponymous district. The River Leine runs through it. According to the 2022 German census, the population of Göttingen was 124,548. Overview The origins of Göttingen lay in a village called ''Gutingi, ''first mentioned in a document in 953 AD. The city was founded northwest of this village, between 1150 and 1200 AD, and adopted its name. In Middle Ages, medieval times the city was a member of the Hanseatic League and hence a wealthy town. Today, Göttingen is famous for its old university (''Georgia Augusta'', or University of Göttingen, "Georg-August-Universität"), which was founded in 1734 (first classes in 1737) and became the most visited university of Europe. In 1837, seven professors protested against the absolute sovereignty of the House of Hanover, kings of Kingdom of Hanover, Hanover; they lost their positions, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin
Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population within city limits, highest population within its city limits of any city in the European Union. The city is also one of the states of Germany, being the List of German states by area, third smallest state in the country by area. Berlin is surrounded by the state of Brandenburg, and Brandenburg's capital Potsdam is nearby. The urban area of Berlin has a population of over 4.6 million and is therefore the most populous urban area in Germany. The Berlin/Brandenburg Metropolitan Region, Berlin-Brandenburg capital region has around 6.2 million inhabitants and is Germany's second-largest metropolitan region after the Rhine-Ruhr region, as well as the List of EU metropolitan areas by GDP, fifth-biggest metropolitan region by GDP in the European Union. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technische Universität Darmstadt
The Technische Universität Darmstadt (official English name Technical University of Darmstadt, sometimes also referred to as Darmstadt University of Technology), commonly known as TU Darmstadt, is a research university in the city of Darmstadt, Germany. It was founded in 1877 and received the right to award doctorates in 1899. In 1882, it was the first university in the world to set up a chair in electrical engineering. In 1883, the university founded the first Department of Electrical Engineering and Information Technology of TU Darmstadt, faculty of electrical engineering and introduced the world's first degree course in electrical engineering.History of the department of Electrical Engineering: (German) In 2004, it became the first German university to be declared as an autonomous university. TU Darmstadt has assumed a pioneering role in Germany. Computer science, electrical engineering, artificial intelligence, mechatronics, business informatics, political science and man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alwin Walther
Alwin Oswald Walther (6May 18984January 1967) was a German mathematician, engineer and professor. He is one of the pioneers of mechanical computing technology in Germany. Life Alwin Walther was born in May 1898 in Reick near Dresden. From 1916 to 1919 Walther served his military service. He was wounded twice and received the Iron Cross 1st Class. From 1919 to 1922 he studied mathematics at the Technical University of Dresden and the University of Göttingen. In 1922, he received his doctorate to Dr. rer. tech. (today according to Dr.-Ing.) from the University of Göttingen under the supervision of Gerhard Kowalewski and . From 1922 to 1928, he was assistant and senior Assistant to Richard Courant at the Mathematical Institute at the University of Göttingen. In 1924, he habilitated and became a Privatdozent. The year before, he stayed in Copenhagen for scientific purposes. From 1926 to 1927 he was a Rockefeller Fellow in Copenhagen and Stockholm. On 1 April 1928 Walther bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emergency Fighter Program
The Emergency Fighter Program () was the program that resulted from a decision taken on July 3, 1944 by the Luftwaffe regarding the German aircraft manufacturing companies during the last year of the Third Reich. This project was one of the products of the latter part of 1944, when the Luftwaffe High Command saw that there was a dire need for a strong defense against Allied bombing raids. Although opposed by important figures such as Luftwaffe fighter force leader Adolf Galland, the project went ahead owing to the backing of Reichsmarschall Hermann Göring. Most of the designs of the Emergency Fighter Program never proceeded past the project stage. History 1944 began with massive bombing raids by the US Army Air Force and RAF Bomber Command on a unprecedented scale. With a shift of emphasis from targeting strategic targets to the destruction of the ''Luftwaffe'', during the Big Week in late February 1944 the ''Luftwaffe'' fighter force was broken. By the summer, Allied ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kommanditgesellschaft
A (abbreviated KG, ; from + ) is the German name for a limited partnership business entity and is used in German, Belgian, Dutch, Austrian, and some other European legal systems. In Japan, it is called a '' gōshi gaisha''. Its name derives from the commenda, an early Italian medieval form of limited partnership. In Indonesia, it is legally called ''commanditaire vennootschap'' (CV) or ''Persekutuan Komanditer'', derived from colonial Dutch administration. Description Partnerships may be formed in the legal forms of General Partnership (, GbR), or specialized in trading (, OHG), or Limited Partnership (''Kommanditgesellschaft'', KG). In the OHG, all partners are fully liable for the partnership's debts, whereas in the KG there are general partners (''Komplementär'') with unlimited liability and limited partners (''Kommanditisten'') whose liability is restricted to their fixed contributions to the partnership. Although a partnership itself is not a legal entity, it may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oberkommando Der Wehrmacht
The (; abbreviated OKW [oː kaːˈve] Armed Forces High Command) was the Command (military formation), supreme military command and control Staff (military), staff of Nazi Germany during World War II, that was directly subordinated to Adolf Hitler. Created in 1938, the OKW replaced the Ministry of the Reichswehr, Reich Ministry of War and had nominal oversight over the individual high commands of the Wehrmacht, country's armed forces: the army (), navy () and air force (). With the start of World War II, tactical control of the Waffen-SS was also exercised by it. There was no direct chain of command between the OKW and the other High Commands. Rivalry with the different services' commands, mainly with the Oberkommando des Heeres, Army High Command (OKH), prevented the OKW from becoming a unified German General Staff in an effective command hierarchy, chain of command, though it did help coordinate operations among the three services. During the war, the OKW acquired more and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilfried De Beauclair
Wilfried de Beauclair (4 April 1912 – 22 April 2020) was a Swiss-born German engineer and computer scientist. His work on automated computing technology makes him one of the first-generation computer pioneers. Biography De Beauclair was born on 4 April 1912 in Ascona, Switzerland, as the second son of the painting couple Alexander Wilhelm de Beauclair and Friederike de Beauclair. He grew up with his brother Gotthard de Beauclair in the artists' colony on Monte Verità. In 1920, his mother moved with the two children to Darmstadt, where the family came from. From 1921 to 1930 he went to school in Darmstadt. In 1930, de Beauclair began studying general mechanical engineering at the Darmstadt University of Technology. After completing his studies, he was initially taken on as a research assistant and then as an assistant at the Institute for Practical Mathematics (IPM), headed by Alwin Walther. There, he was involved in the construction of an automatic calculator with punch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Word (computer Architecture)
In computing, a word is any processor design's natural unit of data. A word is a fixed-sized datum handled as a unit by the instruction set or the hardware of the processor. The number of bits or digits in a word (the ''word size'', ''word width'', or ''word length'') is an important characteristic of any specific processor design or computer architecture. The size of a word is reflected in many aspects of a computer's structure and operation; the majority of the registers in a processor are usually word-sized and the largest datum that can be transferred to and from the working memory in a single operation is a word in many (not all) architectures. The largest possible address size, used to designate a location in memory, is typically a hardware word (here, "hardware word" means the full-sized natural word of the processor, as opposed to any other definition used). Documentation for older computers with fixed word size commonly states memory sizes in words rather than bytes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floating Point
In computing, floating-point arithmetic (FP) is arithmetic on subsets of real numbers formed by a ''significand'' (a signed sequence of a fixed number of digits in some base) multiplied by an integer power of that base. Numbers of this form are called floating-point numbers. For example, the number 2469/200 is a floating-point number in base ten with five digits: 2469/200 = 12.345 = \! \underbrace_\text \! \times \! \underbrace_\text\!\!\!\!\!\!\!\overbrace^ However, 7716/625 = 12.3456 is not a floating-point number in base ten with five digits—it needs six digits. The nearest floating-point number with only five digits is 12.346. And 1/3 = 0.3333… is not a floating-point number in base ten with any finite number of digits. In practice, most floating-point systems use base two, though base ten (decimal floating point) is also common. Floating-point arithmetic operations, such as addition and division, approximate the corresponding real number arithmetic operations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
