Well, theres been a computer in my house since i was born so i've tinkered = ) "i.e. gamed ha ha"
but seriously have some knowledge i'd say 10 years... my dad's hella old skool... he's told me stories bout when computers were the size of a two bedroom and it only had like 8kb of memory, and it took some poor guy a whole night of entering punch cards to run some stupid calculations... = )