Презентация по сетям

http://www.google.ru/url?sa=t&rct=j&q=%D0%BC%D0%BE%D1%89%D0%BD%D0%BE%D1%81%D1%82%D1%8C%20%D0%BA%D0%B0%D0%BD%D0%B0%D0%BB%D0%B0%20%D0%BD%D0%B0%D0%B4%20%D0%BF%D0%BE%D0%BB%D0%BE%D1%81%D0%BE%D0%B9%20%D0%BF%D1%80%D0%BE%D0%BF%D1%83%D1%81%D0%BA%D0%B0%D0%BD%D0%B8%D1%8F&source=web&cd=4&sqi=2&ved=0CDcQFjAD&url=http%3A%2F%2Fparamax.susu.ru%2Fstudy%2FSetyLect3.ppt&ei=JCRRT-aeD8rh4QTskPXGDQ&usg=AFQjCNGVIm8t4BLM_NZyDgarFBav2n0uRQ&cad=rjt