I'm a little surprised that Morse code machines didn't get a mention. They are essentially tiny typewriter keyboards, with surprising utility for having only o

I'm a little surprised that Morse code machines didn't get a mention. They are essentially tiny typewriter keyboards, with surprising utility for having only one key! (some even look like typewriter keys: http://upload.wikimedia.org/wikipedia/commons/9/9c/J38TelegraphKey.jpg http://upload.wikimedia.org/wikipedia/commons/9/9c/J38Telegr... )