Hiro's eyes widened and his expression shifted into a wide triumphant grin as the device activated. "Hey...that doesn't sound like a regular programmed response..." He said, clearly impressed. "It's an AI..." He looked at Tony. "A pretty advanced one at my guess. The code on this thing must be insane." He waggled a finger. "Hey Baymax isn't dumb. My brother built and programmed him. He's also my friend." He was too wired to be truly insulted though, he was just stating a correction.

He was sitting on the edge of his seat now with interest. Oh man what he'd give to take something like this apart and see how it worked (before putting it back together of course and designing his own). He flushed slightly when he realized he had been sitting there almost gushing with excitement and fidgeted, readjusting the cap on his head.

At the question, Hiro thought for a moment. "Well, I was building my own computers when I was at least 5." He said finally. "I have multiple ones in the garage that I put together, including the holo design table." He shrugged a little. "I've pretty much been upgrading them and tweaking them over the years."

Hell, even before he actually built his first computer - he was always taking things apart around the house to see how they worked. It used to drive his Aunt nuts when he did it too.