By the time I was a kid, most of the x86 computers I was exposed to were running DOS with the included QBasic IDE so I never had to worry about things like this

By the time I was a kid, most of the x86 computers I was exposed to were running DOS with the included QBasic IDE so I never had to worry about things like this. However, we had old stacks of Compute magazine [1] lying around with BASIC source games printed out - and I remember initially being confused as to why all the line numbers were separated by intervals of 10... [1] https://en.wikipedia.org/wiki/Compute https://en.wikipedia.org/wiki/Compute!