... the nation. By 1990, AT&T had installed 300 million miles of interexchange light wave networks. The advantages of light wave systems are many and include freedom from electrical disturbance tremendous bandwidth or information-carrying capacity small physical size relative low cost The speed at which information can be moved through the fiber optic cable is also an important advantage. AT&T established an experimental fiber optic system that moves digital information at a speed of 8 gigabits (8 billion bits) per second over a 68-mile stretch of repeaterless fiber optic cable. One gigabit per second is fast enough to support 15,000 voice circuits. ...
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... or not technology is directly incorporated into a science fi ction story as an obvious vehicle, the author knows that it is always present in the mind of the reader. It is this plausablilty of what conventionally should not be acceptable that has led to science fiction's increasing popularity over the years. As James explains, "much sf is concerned with the future and with the possibilities presented by scientific and technological change" (James 3). Truly, humans exploring and even colonizing other worlds, the plot of many a science fiction novel, has to many become inevitable. The successful series of Apollo moon landings in the 1960's and the knowledg ...
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... of the defective chips. Six weeks after Mr. Nicely went public, IBM, a major purchaser of Pentium chips, stopped all shipments of computers containing the defective Pentium chips. Intel's stock dropped 5% following this bold move by IBM. IBM's main contention was that it puts its customers first, and Intel was failing to do this. Intel's handling of this defective chip situation gives rise to many questions. During the course of this paper I will address several of them. The first of which is how did a company with such a stellar reputation for consumer satisfaction fall into the trap that the customer does not know best? Secondly, what made this c ...
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... after the digital block. The user inputs controlling frequency and symmetry are also built into this control block. Therefore it is clear that the digital block can be divided into 4 distinct blocks, each with its own functionality. These blocks are the control module, counter module, filter control module and 8-bit D/A. The D/A chosen is the DAC0801LCN. Its specifications can be found in the appendix. The layout of this design is shown below. The interconnections will be discussed later but the thickness of the lines indicates the number of bits in the bus lines. As the name suggests the control module takes user inputs, processes them and s ...
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... that no was using and wrote the code in assembly. It was initially a stripped down, single user version of MULTICS but Thompson actually got the system to work and one of his colleagues jokingly called it UNICS (UNiplexed Information and Computing Service). The name stuck but the spelling was later changed to UNIX. Soon Thompson was joined on the project by Dennis Richie and later by his entire department. UNIX was moved from the now obsolete PDP-7 to the much more modern PDP-11/20 and then later to the PDP-11/45 and PDP-11/70. These two latter computers had large memories as well as memory protection hardware, making it possible to support multiple ...
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... computer as a management tool. In 1969, Berson developed a marketing information system for marketing research. In 1970, the Montgomery urban model was developed stressing the quantitative aspect of management by highlighting a data bank, a model bank, and a measurement statistics bank. All of these factors will be influential on future models of storing data in a pool. According to Martine, in 1981, a database is a shared collection of interrelated data designed to meet the needs of multiple types of end users. The data is stored in one location so that they are independent of the programs that use them, keeping in mind data integrity with respect to t ...
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... using the telegraph. The telegraph is basically an electromagnet connected to a battery via a switch. When the switch is down the current flows from the battery through the key, down the wire, and into the sounder at the other end of the line. By itself the telegraph could express only two states, on or off. This limitation was eliminated by the fact that it was the duration of the connection that determined the dot and dash from each other being short and long respectively. From these combinations of dots and dashes the Morse code was formed. The code included all the letters of the English alphabet, all the numbers and several punctuation marks. A ...
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... to "programming" rules that the user must memorize, all ordinary arithmetic operations can be performed (Soma, 14). The next innovation in computers took place in 1694 when Blaise Pascal invented the first "digital calculating machine". It could only add numbers and they had to be entered by turning dials. It was designed to help Pascal's father who was a tax collector (Soma, 32). In the early 1800's, a mathematics professor named Charles Babbage designed an automatic calculation machine. It was steam powered and could store up to 1000 50-digit numbers. Built in to his machine were operations that included everything a modern general-purpose computer would need. I ...
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... doing math or accounting etc. on Windows 3.1 or older software, are just as susceptible to this "bug." Can this be repaired in time? For some, it is already too late. A system that is devised to cut an annual federal deficit to 0 by the year 2002 is already in "hot water." Data will become erroneous as the numbers "just don't add up" anymore. Some PC owners can upgrade their computer's BIOS (or complete operating system) and upgrade the OS (operating system) to Windows 95, this will set them up for another 99 years. Older software however, may very well have to be replaced or at the very least, upgraded. The year 2000 has become a two-fold problem. ...
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... of one (same goes for these as well). As the origin is not known as to whom may have made the invention and since may ancient empires used it, some of the first to use it were the Chinese and so the credit has been given to them. Another invention that comes from the abacus and was used in a similar fashion was the soraban. The soraban comes from the Japanese who perfected it to there use. The soraban is slightly different in the fact that it has one bead on the top part or each place value, and has only five beads in each place value on the bottom part. Even though we now have calculators and computers to make our computations, in some of the less develo ...
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