The professor does have a point. I remember writing one of my first BASIC programs. All it did was wait for a key to be pressed, then fill all character positions on the screen with that letter. I could watch it go line by line. Then I wrote the same program in 6502 assembler. The entire screen of characters changed instantly, as fast as I could type. A feeling of awe and sudden empowerment rushed through my veins. Fun stuff.
An inexcusable offense; you should be copacabanished for that.
(I write the jokes the make the whole world cringe....)