Copilot Plus PCs are the world's first 'AI-first' PCs, designed to run AI workloads significantly faster and more efficiently than traditional PCs. They are capable of performing AI tasks up to 20 times faster and 100 times more efficiently compared to traditional PCs, and are 58% faster than a Macbook Air M3.

Copilot+ PCs improve AI performance by allowing the PC to watch, hear, and understand its environment. They can answer questions on user behavior in real-time and have the capability to search and recall anything the PC has seen, making them highly efficient for AI workloads.

The text does not provide a specific release date for Microsoft's AI computer and the new Copilot features. It only states that Microsoft has previewed these technologies. For the most accurate and up-to-date information, one would need to check Microsoft's official announcements or follow updates from credible sources like Max Rascher, who posts AI updates, tools, and giveaways.