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okay that makes sense. so much of that i take for granted, but at orientation week i met a couple of people who had been doing computer science for a couple of years and asked me "are you one of those guys that start the course already knowing all these languages?" and thought it hilarious when i said i only know a couple, because most people go in not knowing anything.

That is unusual- when I was a TA most people taking CS classes already had some programming background. There were a few exceptions who didn't.