... works on a relatively simple theory. It's one that everybody has experienced in their lifetime. Radar works much like an echo. In an echo, a sound is sent out in all directions. When the sound waves find an object, such as a cliff face, they will bounce back to the source of the echo. If you count the number of seconds from when the sound was made to when the sound was heard, you can figure out the distance the sound had to travel. The formula is: (S/2) X 1100 = D (Half of the total time times 1100 feet per second equals the distance from the origin to the reflection point) Of course, radar is a much more complicated system than just somebody shouting ...
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... jobs are paying well, proving that highly skilled labor is what employers want! "There is clear evidence that the supply of workers in the [unskilled labor] categories already exceeds the demand for their services," says L. Mishel, Research Director of Welfare Reform Network. In view of these facts, I wonder if these trends are good or bad for society. "The danger of the information age is that while in the short run it may be cheaper to replace workers with technology, in the long run it is potentially self-destructive because there will not be enough purchasing power to grow the economy," M. B. Zuckerman. My feeling is that the trend from unskilled labor to ...
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... of peripheral hardware and computing software through its DellWare program. Nearly two-thirds of Dell’s sales are to large corporations, government agencies and educational institutions. Dell also serves medium and small business and home-PC users. Dell’s award-winning customer service, industry-leading growth and financial performance continue to differentiate the company from competitors. At the heart of that performance is Dell’s unique direct-to-customer business model. “Direct” refers to the company’s relationships with its customers, from home-PC users to the world’s largest corporations. There are no retailers or other resellers adding unnec ...
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... data considerably differently than the PC. The Cray's circuits permit an array of data (known as a 'vector') to be processes as a SINGLE entity. So, where the IBMPC may require several clock cycles to multiply two numbers, the Cray performs everything in one clock cycle. This power is measured in Millions of Floating Point Operations Per Second (MFLOPS) - which is to say the rate at which floating-point operations can be performed. The Cray MFLOPS vary as it does many activities, but a rate of up to 210 MFLOPS (per CPU) can be achieved. The second '2' in the X-MP/22 title refers to the two million 64-bit words (16Mb) of shared central memory. This can be expan ...
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... is the literal meaning. Pragmatics is world knowledge, knowledge of the context, and a model of the sender. When syntax, semantics, and pragmatics are applied, accurate Natural Language Processing will exist. Alan Turing predicted of NLP in 1950 (Daniel Crevier, 1994, page 9): "I believe that in about fifty years' time it will be possible to program computers .... to make them play the imitation game so well that an average interrogator will not have more than 70 per cent chance of making the right identification after five minutes of questioning." But in 1950, the current computer technology was limited. Because of these limitations, NLP programs of that day ...
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... when running graphics and publishing applications. You can understand why the education market is almost entirely apple based. Recent surveys confirm that from kindergarten through college, Apple has cornered the market in education, and remains number one in this U.S. market. Apple Macintosh computers account for 60% of the 5.9 million machines in U.S. schools for the 1995-96 school year. Only 29% of schools use the Microsoft/Intel platform, and DOS only accounts for a measly 11%. Also it was reported that 18.4% of 4 year college students own the Macintosh. 55% of college students own a computer, and Apple's in the lead for that market too! The reason Apple ...
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... a complaint with the Competition Directorate of the European Commission in June of 1993. (Maldoom 1) Doing this stalled the investigations even more, until finally in August of 1993, (Check 1)the Federal Trade Commission decided to hand the case over to the Department of Justice. The Department of Justice moved quickly, with Anne K. Bingaman, head of the Antitrust Division of the DOJ, leading the way.(Check 1) The case was finally ended on July 15, 1994, with Microsoft signing a consent settlement.(Check 1) The settlement focused on Microsoft's selling practices with computer manufacturers. Up until now, Microsoft would sell MS-DOS and Microsoft's other operating ...
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... have a high standard of living. The skinny, poorly dressed individual holding the developing world indicates that the developing nations of the world are not prosperous, and have a lower standard of living than do industrialized nations. Both individuals are supporting each other in such a way that if one is removed, the other will fall. Without resources to use, industry would not be able to maintain its existence. Likewise, without a market for their resources, or the products of industry, the developing world would not be able to maintain its existence. Two current problems which exist in the developing world today are political instability, and rapid urbani ...
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... a parity check system was developed. Each character is represented by a byte consisting of a combination of intelligence bits (seven bits in ASCII and eight bits in EBCDIC) and an additional bit called a check or parity bit. Even parity codes place a check bit with each byte that contains an uneven number of 1 bits. (Remember that a bit is either 1 or o). Because the check bit is transmitted only with characters composed of an uneven number of 1 bits,all characters transmitted will have n even number of 1 bits. The check bit is transmitted to and from the computer along with character code. If a bit is lost (or added) in transmission, the system will de ...
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... them to the carbon granules. These electrodes conduct electricity flowing through the carbon. The sound waves hit the diaphragm causing the electrical resistance of the carbon to vary. The electret transmitter is composed of a thin disk of metal-coated plastic held above a thicker, hollow metal disk. This plastic disk is electrically charged, and creates an electric field. The sound waves from the caller's voice cause the plastic disk to vibrate, changing the distance between the disks, thus changing the intensity of the electric field. These variations are translated into an electric current which travels across the telephone lines. The receiver of a te ...
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