In places like India with smartphones, there's an app now for women if they're in a violent situation, they can press one button. They've given their cell-phone number to five trusted friends, and right away their GPS location goes out: "Here I am."

I'm happy we have three healthy children and we'll stay with three healthy children.

My undergraduate work was in computer science and economics. It just happened to be at that time when 34 percent of computer-science majors were women. We didn't realize it was at the peak at the time.

Make sure you continue to trust what you know now about yourself and stay true to what you believe in

With economic opportunity, sometimes it's making sure that if they're not in a place where they can have good jobs, that when they have economic opportunity, they have digital tools to use.

When I studied computer science at Duke University in the first half of the 1980s, I had professors who treated women differently than men. I kind of got used to it. At Microsoft, I had to use my elbows and make sure I spoke up at the table, but it was an incredibly meritocratic place. Outside, in the industry, I would feel the sexism. I'd walk into a room and until I proved my worth, everyone would assume that the guy presenting with me had credibility and I didn't.

All lives have an equal value.