For me I think it was a manual for BASIC at age 10. It was fascinating, and I learned from an early age what a mess you can get into using GOTO statements. I ha

For me I think it was a manual for BASIC at age 10. It was fascinating, and I learned from an early age what a mess you can get into using GOTO statements. I have painful memories of having to renumber the lines in order to shoehorn new code blocks in.