off-the-shelf /Hybrid computing
Arabic translation: الحوسبة الهجينة باستخدام المعالجات المتاحة في السوق-صناعة حواسيب هجينة من مكونات تناظرية ورقمية جاهز
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| 11:25 Sep 8, 2006 |
| English to Arabic translations [PRO] Military / Defense | |||||||
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|  Selected response from: Ehab Tantawy Local time: 07:26 | ||||||
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| 5 +2 | الحوسبة الهجينة باستخدام المعالجات المتاحة في السوق-صناعة حواسيب هجينة من مكونات تناظرية ورقمية جاهز |
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Answers
1 hr confidence: 
peer agreement (net): +2
peer agreement (net): +2| off-the-shelf /hybrid computing الحوسبة الهجينة باستخدام المعالجات المتاحة في السوق-صناعة حواسيب هجينة من مكونات تناظرية ورقمية جاهز Explanation: الحوسبة الهجينة باستخدام المعالجات المتاحة في السوق-صناعة حواسيب هجينة من مكونات تناظرية ورقمية جاهزة Hybrid computers are made by combining features of analog computers and digital computers. In general, analog computers are extraordinarily fast, since they can solve most complex equations at the rate at which a signal traverses the circuit, which is generally an appreciable fraction of the speed of light. On the other hand, the precision of analog computers is not good; they are limited to three, or at most, four digits of precision. Digital computers can be built to take the solution of equations to almost unlimited precision, but quite slowly compared to analog computers. Generally, complex equations are approximated using iterative numerical methods which take huge numbers of iterations, depending on how good the initial "guess" at the final value is and how much precision is desired. (This initial guess is known as the numerical seed for the iterative process.) For many real-time operations, the speed of such digital calculations is too slow to be of much use (e.g., for very high frequency phased array radars or for weather calculations), but the precision of an analog computer is insufficient. Hybrid computers can be used to obtain a very good but relatively imprecise 'seed' value, using an analog computer front-end, which is then fed into a digital computer iterative process to achieve the final desired degree of precision. With a three or four digit, highly accurate numerical seed, the total digital computation time necessary to reach the desired precision is dramatically reduced, since many fewer iterations are required. Reference: http://www.lexicool.com/dlink.asp?ID=0VS5QP23361&L1=01&L2=09 Reference: http://en.wikipedia.org/wiki/Hybrid_computer |
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8 hrs confidence: 
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