And for most of the years computers have been around they did not revolutionize communication. That's a relatively late development. Not even close. Computers

And for most of the years computers have been around they did not revolutionize communication. That's a relatively late development. Not even close. Computers have been used as a novel communications tool since at least 1958, and for (de)encryption of traditional communications since 1943. [ http://en.wikipedia.org/wiki/Semi-Automatic_Ground_Environment#Network_communications http://en.wikipedia.org/wiki/Semi-Automatic_Ground_Environme... ] [ http://en.wikipedia.org/wiki/Colossus_computer http://en.wikipedia.org/wiki/Colossus_computer ]