Datatransfer Essay

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EET250 Computer config 1 Instructor: Data transfer Online EET Department Date: 10/9/2013 The purpose of this paper to to give a brief insight on data transfer and analog vs digital. With the upcoming change from analog to digital, it will be good to get a brief understanding on how it all works. Lets start with the first form on of data transfer, analog systems worked by turning there signal into direct form, a few good examples of this would be a music box. If you take one apart, you'll find that there is a tiny cylinder (depending on the size of the box), that cylinder will have bumps or little grooves. This is a form of an analog system. As it turns, the bumps on the cylinder catch the teeth of a comb a sequence, which creates the music. Another example would be a vinyl record, yes, the old LPs or even cassette tapes. Signal is written in raw form into the vinyl or tape. Digital systems have more to it then bumps and grooves on vinyl. This system take the inputted signal such as a recording and encodes it into a bunch of 0's and 1's or binary. Whats is binary. Binary code represents text or computer processor instructions using the binary number system's two binary digits, 0 and 1. A binary code assigns a bit string to each symbol or instruction. For example, a binary string of eight binary digits (bits) can represent any of 256 possible values and can therefore correspond to a variety of different symbols, letters or instructions. Computers now use digital signaling, signals which are again represented by the base 2 numbering system or that system we all call binary. Again binary bits are shown to us as 1's or 0's, where 1 means “ON” and 0 means “OFF”. Now different ways of encoding are out there. Distortion, noise on a cabling medium are factors that prevent the accuracy of

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