We love the Mac in our teams have been working tirelessly to deliver the best lineup of notebooks and desktops that we've ever had. Well, now it's time for the Mac to take a gigantic leap forward. To do this, we need to develop a new set of advanced technologies. So for the past several years, we've had our teams working with the singular purpose of defining and building the next generation of Mac and at the core of this effort is the Silicon. We've been making Apple Silicon for more than a decade. It's at the heart of iPhone, iPad, and Apple Watch, and now we want to bring it to the Mac so the Mac can take a huge leap forward with the incredible performance custom technologies and industry leading power efficiency of Apple Silicon. And as we've said, we're developing a family of chips and we're going to transition the Mac line to these new chips over the next couple of years. Well, today we are incredibly excited to announce our first step in this transition with our first chip designed specifically for the Mac. And we call it. M1 M1 has been optimized for most popular low power systems, were small size and power efficiency are critically important. It is a stunningly capable chip and it ushers in a whole new era for the Mac. Now let's get started by spending a few minutes on a deep dive into this new chip with Johnny. And one is a breakthrough, a chip for the Mac. Our approach with M1 was to deliver industry leading performance and features, while relentlessly focusing on power efficiency as a result. And one delivers a joint leap in performance per Watt and every Mac with M1 will be transformed into a completely different class or product. M1 is the first system on chip or associate for the Mac. Let me show you what that means. Until now, a Mac needed multiple chips to deliver all of its features. It had chips for the processor, bio security and memory. Now with them one these technologies are combined into a single associate delivering a whole new level of integration. For more simplicity efficiency, an amazing performance. M1 also features our unified memory architecture or UN A and one unifies its high bandwidth low latency memory into a single pool within a custom package as a result.