Comment BASIC (Score 1) 106
I learned in the early 1980s as a 12 year old kid that BASIC was more of a concept than an actual language or standard. Every home computer (C64, TI-99/4A, TRS-80, etc) had a different BASIC with different syntax (and some were VERY different). Some, like the Amiga Basic (interestingly, written by Microsoft) did not even use line numbers, and instead used labels (pretty advanced for an interpreted language in 1985 running on 256k RAM and a 7 MHz CPU).