I didnt do computer science because of the trip involved to the nearby college required for access to computers. It would have eaten into my playtime/football.In Secondary School in the U.K. (11-16 years old - High School?) for our 'O' Level Computer Studies, we'd write our code onto coding sheets and they would get sent to our local Polytechnic (where I did my CS degree) to be punched onto card and run on a Prime mainframe. We'd get the music paper output the next week, correct errors, if any, and repeat.
I first used a computer in anger at 6th form in 1984, I think they had more than than one but I never saw any others.