The book mentioned that parents are more likely to encourage their sons to tinker with gadgets than their daughters. Well. That was all he needed.
Always the equal oportunist, Chris helped both Unity and Reuben take the whole computer apart and showed them what everything was called and how it worked. The kids especially liked hearing about the motherboard.
Who knows if engineering will be in either of their futures but they had fun knowing they could see the inner workings of a mysterious machine and learn more about it.