3 ms·

Kids? You can be over 30 and never have used a teleprinter :)

• breadbox 11y ago
  As always, "kids" == younger than me. But no, I've never used a teleprinter for anything serious. Still, the evidence of their recent departure is all around us. vi (short for "visual", because the idea of a visual editor was still pretty novel) didn't even exist until 1976.
• rnovak 11y ago
  But I hope you wouldn't be amazed that a book written in 1978 made reference to common technology at the time. The whole point of this post was the original K&R C, so why wouldn't they reference/assume teletypes?