Couldn't think about anything else after I first saw a computer at the age of 7.
Was given one at 8, but had to share it with my brother and was limited to 1 hour a day that I wisely used for gaming...arcanoid...in black and white. So it wasn't until 16 when I started to create something meaningful and can't stop ever since.
Have a master's degree in Computer Science now and 1hr 45min half-marathon finish time. Because there should be balance in everything.