Kewl.. those are fun ages.  My oldest was learning to used the computer when he was 2.  By the time he was 3, he could start the computer, start a game (storybook type) on his own, read and complete it, quit, and start another. Was awesome!  The middle one was 3 before he really started on the computer.  The youngest was play FPS games by the time he was 6, and within a couple years, was far better than me, and everyone thought he was hacking he was so good at them!  LOL  They couldn't believe a little kid was beating them!