Em 12/12/2012 15:48, Barry Gershenfeld escreveu: > And I thought using Lynx as a browser was pretty retro! This takes the > cake. > > The tape reels don't move together. This suggests some kind of interesti= ng > tape handling inside the machine. That would be fun to watch. When I entered college in the late 80's the university still had some old mainframes and they still used tape decks. The tape was kept with a lot of slack on both sides of the read/write head (making deep "U" shapes ), kept taut by vacuum and optical sensors controlled the reel motors to keep the correct depth of the "U"s. =20 > Now I feel bad for wasting that line printer paper. I still have some paper and two or three old printers somewhere :) Best regards, Isaac --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .