I started at the age of 7, on a Sinclair ZX81, a Z80 based system. Getting it to print things to the screen. Then eventually progressed to an Acorn Archimedes a

I started at the age of 7, on a Sinclair ZX81, a Z80 based system. Getting it to print things to the screen. Then eventually progressed to an Acorn Archimedes at the age of 9, where I started to figure out how ARM assembly language worked, which is built in to BBC BASIC. At the age of 11 I was already fluent in assembler. Then programming C at the age of ~14 or so, and running Red Hat Linux 5.1 at the age of 16. But then I was set back at the age of 18, where I developed severe PTSD from a family abuse related incident, sadly. That was way back in 2001.