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the world's first electronic computer is ABC (Atanasoff-Berry Computer, Atanasoff - Berry Computer) ENIAC is the second. Information previously claimed that the first electronic computer called ENIAC (Chinese name: ENI Ake) (short for Electronic Numerical Integrator and Computer, the English full name Electronic Numerical Integrator And Computer), which was February 15, 1946 was born in the United States declared . Undertake development tasks of the
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Eni Ake Ballistic Research Laboratory time is the victory of von Neumann's role in the development of war, the birth of ENIAC ENIAC use of other translation questions Eni Ake University of Pennsylvania in the United States Moore College of Electrical Engineering at the opening ceremony. It is the world's first modern electronic computer, This monster is an area of 170 square meters and weighs 30 tons. Speaking at the opening ceremony, electrical computer's processing speed 1000 times faster. The perfect appearance, making the guests cheer
endless. ENIAC: length 30.48 m, width 1 m, covering about 63 square meters, 30 console, about the equivalent of 10 common room size, weighing 30 tons, 150 kW power consumption, cost $ 480,000. It contains 17,468 vacuum tubes 7,200 crystal diodes, 1,500 relay, 70,000 resistors, 10,000 capacitors, 1,500 relays, more than 6,000 switches, 5,000 times per second addition or multiplication of 400 times,
air force one high, 1,000 times a relay computer, hand calculations 20 times. Ballistic Research Laboratory developed the idea of computer generated during the Second World War. Was in full swing, with the country's weaponry is far worse now than, the dominant strategic weapon is the aircraft and artillery, can there be any Therefore research and development of new artillery and missiles it is very necessary and urgent. To this end the U.S. Army Ordnance Department in Aberdeen, Maryland, set up a U.S. military asked the lab every day for the Army artillery forces six fire missiles in order to develop the table for technical appraisal. Do not look down upon the District 6 fire table, they need large amount of work was amazing! Fact sheet should be calculated for each fire hundreds of ballistic and trajectory of each model you know what that is? A very complicated nonlinear equations. These equations have no way to find the exact solution, so numerical methods can only be calculated approximately. Time is victory, but that is solved using approximate numerical methods is not an easy task! Computational tools at the time, even if the employment of more than 200 computing lab staff about overtime work can be considered more than two months time to complete a fire table. In I'm afraid not, and other advanced weapons developed, is a losing battle. To change this unfavorable situation, then a University of Pennsylvania Moore School of Electrical Engineering Moxi Li (John Mauchly) trial in 1942 made the initial first electronic computer vision - expect to use tubes instead of relays to improve the calculation speed of the machine. The idea that the U.S. military as soon as funding support, set up a Moxi Li, Eckert (Eckert) led the development team started to develop the work of the budget of 15 million, which was a giant in the section. If it were not for war, who are willing to out so much money! Although the evil of war, but might come without the occasional promotion of technological development. Von Neumann to the development work is very fortunate that the Institute was then ballistics consultant, is participating in the work of the United States developed the first atomic bomb mathematician John von Neumann (v · n weumann ,
nike air force one low,1903-1957, the Hungarian-American person) with the atomic bomb development (1944) encountered a large number of computational problems, in the development process of developing medium-term to join the group. There are two problems the original ENIAC memory and it is not connected with the wiring to control panels, or even to lap a few days, the calculation speed of this work will be offset. In 1945, von Neumann and his research group to discuss, based on published a new many of the key issues on the computer to make an important contribution to the solution, thus ensuring the smooth introduction of the computer. Although the ENIAC in size, power consumption astonishing calculation speed, but thousands of times (now the fastest supercomputer trillion operations per second up to!), But it is more than the then existing computing devices 1,000 times faster, but also there automatically by pre-programmed to perform arithmetic, logical operations and store data. ENIAC announcement of a new era. Scientific computing from the door was opened. It will certainly not satisfied with this development it! Since the advent of the first computer, more and more high-performance computer been developed. The development of the computer from the first generation to fourth generation, is currently the fifth and sixth generation of intelligent computer development. ENIAC as the first manufactured, many high-performance computer is always for cutting-edge and conventional weapons, especially nuclear weapons development services. And human invention, like all the tools, the computer is also due to the actual needs of the production side to come out. From the 18th century, scientific and technological level has made substantial progress. Create the necessary computer knowledge and logic circuit tube technology has been in the late 19th and early 20th century and to be perfect. Therefore we can say the basis for manufacture of computer science has been complete. The role of the war but why in the world to retreat into the first electronic computer was able to come out mid-40's it? This is mainly inside the actual need is urgent and the availability of funding problems. Of course, there have been actual needs, who do not want to have one of the most advanced computing tools? However, demand alone can not decide everything. Where develop a new tool, always need to advance into a lot of money (developed ENIAC, the first $ 150,000 of investment, but the final total investment of up to 48 million,
air force 1 shoes, but a huge sum of money in the 40's!). Can not come out as a tool for money is always a small number of bold. The war finally the birth of the computer become a reality. In fact a variety of social needs, the war is always the most urgent needs, as a matter of survival. Government and military are always generous, the latest scientific and technological achievements will be applied to strategic and conventional weapons, such as the development work to ensure one's own leading position in the military. Computer is filled with smoke in the Second World War developed in the beginning. As mentioned earlier, when the United States in order to provide accurate and timely ordnance testing ballistic fire table, the urgent need for a high-speed computing tools. Therefore, the strong support of the U.S. military, the world's first electronic computer ENIAC in 1943 started to develop. Participate in development work is based on the University of Pennsylvania Moore School of Electrical Engineering Moxi Li and Eckert led the development team. In the development of medium-term, the famous mathematician von Neumann manga into the ranks. ENIAC's birth more than two years,
air force one low, ENIAC developed. Spring of 1945, ENIAC the first successful trial run. February 10, 1946, the U.S. Army Ordnance Department and the Joint Institute of the University of Pennsylvania Moore announced to the world the birth of ENIAC, opened a computer from the development and application of the regiment. Now people often deal with the overwhelming majority of personal computers, its small size, light weight, high performance. Although there are many giant and large-scale computers, but they are So many people's minds, may be assumed that the original computer is also so It can be a big mistake! Previous computer, but an absolute monster! ENIAC Take for instance, it uses tubes as the basic electronic components. How many use it? A full 18,800 tubes, each tube about an ordinary 25 watt household light bulbs so much! This ENIAC had an 8-foot-high (about 2.44 meters), 3 feet wide (about 0.9 m), 100 feet long (about 30.48 meters) of the body, takes up 1800 square feet (167 m & ; sup2;), weighing 30 tons, power 150 kW. ENIAC use this monster do? It can carry 5000 times per second addition operation (according to estimates,
nike air force 1 high, the fastest computing speed were only 5 addition operations per second), which multiply operations per second. It can also be square and cube operations, such as calculating trigonometric functions sine and cosine values, and other more complex operations. To the present point of view, which of course is very negligible. But at the time, but a remarkable achievement! Original need for more than 20 minutes one time to the calculated trajectory, and now as long as just 30 seconds! This can be alleviated once the calculation speed was very serious way behind the actual requirements of the situation. At that time, von Neumann was involved in atomic bomb work, he developed the atomic bomb was encountered with a large number of computational problems to work on the development of the computer to the. Therefore we can say, ENIAC was the world's first atomic bomb was born out of a lot of power also. But even seemed at the time, ENIAC also have many drawbacks: in addition to large in size,
nike air force one high, power consumption and more than, as the high heat generated by the machine running so very easy to damage the tubes. As long as one tube is damaged, the whole machine can not operate normally, so it must start to find out more than 18,000 tubes that are damaged, replace with new, never mind how much trouble. Questions on the world's first computer at home most of the questions will appear on the media world's first electronic computer was the last century in 1946 by the American Mao Keli (John Mauchly) invented the ENIAC written records, but the other kinds of argument is: world's first electronic computer at Iowa State University by John Vincent Atanasoff (John Vincent Atanasoff) professor and his graduate student Clifford bay Switzerland (Clifford Berry ) President in 1937 and 1941 developed the In Wikipedia you type Atanasoff-Berry Computer) are actually very few people know this truth, many of the country in their monographs, textbooks, and even the science activities, is still publicity ENIAC is the world's first computer. Therefore, as a need for IT workers in a scientific spirit, for the former to clarify the facts, hope this article helps to correct this long-term presence in the country's major academic intellectual misunderstanding the record straight. Confirmed, the world's first computer should be 1941, the patent, is the world known as the After a U.S. court after the verdict, and overturned the patent revoked in Moco, The other translation ENIAC Electronic Numerical Integrator & Caculator Electronic Numerical Integrator And Caculation term extension Atlas Atlas read more: 1
http://whjc.wfe.cn/ENIAC1.HTM
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http://www.cs.iastate.edu/jva/jva-archive.shtml). Open Category: information technology, computer, computers, technology, inventions
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