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| When the analogue is examined in the dictionary, it is written, "The numerical value is shown by the physical value into which length, the turning angle, and the current, etc. continuously change".The one that something is not quantitatively divided at certain constant intervals can be said that all are analog timewise. The one not treatable at once with the personal computer and the displayed one are not figures but the one is basically analog when easily explaining. |
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| When digital is examined in the dictionary, it is written, "A continuous amount is gradually delimited and show by the figure". The one to be displayed the figure can be all called digital when easily explaining. Moreover, the one preserved by 1 and 0 can be all called digital. |
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| Analog data can be easily made digital data. The character written on paper is input with the word processor, and the photograph is taken with the scanner, and the sound is recorded with IC voice recorder and the analogue can be made digital data only by worth and this left. The hard disk, the SD card, and DVD, etc. are the completion of all digital data as long as it is possible to preserve it. And, the favor of digital data comes to be received. |
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The digital technique has a lot of points that are more greatly more dominant than the analog technology. First of all, there is no deterioration in data. It never becomes old after years how many though it depends on preserved media. Moreover, when data is transmitted, the noise is not influenced easily, and is excellent in security.
However, the digital technique to be still development and not throwing away of the analog technology because it is on the way. |
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