Actually, in spite of what I posted above about the Spectrum, I suppose the first computer I actually "used" was during my "A Level" maths course in 1969/70.  I never actually got to see the computer (we were assured it was "the size of a room" by our teacher), because it was in the Technical College" next door to my school, but we were given a set of parameters each week and expected to write a "program" to expedite the required solution.  And when I say "write" I mean write...in longhand, in an exercise book, with weird (almost algebraic as far as I can remember) script.

The liver is evil - It must be punished.