國中生物考卷..天堂 LOL全都考!太歡樂了XD
Physical layer: the bottom layer in the OSI model 文:http://likenews.tw/article.php?no=16122The physical layer is the bottom layer in the seven layer OSI (open system interconnection) reference model. This model was developed in 1977 in order to standardize and simplify definitions relating to computer networks. It divides the networking process...
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