We are at a crossroads in the music business: with the rise of the internet, the world we live in has changed, and the past is not coming back. But I see the glass as half-full: the internet and social networking are new avenues for the next Bob Dylan to be born on.

Information technology and business are becoming inextricably interwoven. I don't think anybody can talk meaningfully about one without the talking about the other.

When you want to do your homework, fill out your tax return, or see all the choices for a trip you want to take, you need a full-size screen.

The only thing I understand deeply, because in my teens I was thinking about it, and every year of my life, is software. So I'll never be hands-on on anything except software.

Microsoft Research has a thing called the Sense Cam that, as you walk around, it's taking photos all the time. And the software will filter and find the ones that are interesting without having to think, 'Let's get out the camera and get that shot.' You just have that, and software helps you pick what you want.

Windows is probably the most important product in the entire PC industry. Everything we do in terms of supporting touch, new hardware, accessibility has incredible impact.