Today PCWorld is launching Smart Answers, a chatbot tool that helps you get more from our content. It's built using Generative AI and existing content written by our human editors. The way we interact with content is changing. It wasn't so long ago you would have sifted through a printed magazine for advice on the latest consumer technology, yet it felt like a revolution when those old mags switched over to digital and online editions. These days, everything you could ever want to read is on the internet--or just as likely on YouTube or TikTok.

Autonomous cars need a new kind of horsepower to identify objects, avoid obstacles and change lanes. There's a good chance that will come from graphics processors in data centers or even the trunks of cars. With this scenario in mind, Nvidia has built two new GPUs -- the Tesla P4 and P40 -- based on the Pascal architecture and designed for servers or computers that will help drive autonomous cars. In recent years, Tesla GPUs have been targeted at supercomputing, but they are now being tweaked for deep-learning systems that aid in correlation and classification of data. "Deep learning" typically refers to a class of algorithmic techniques based on highly connected neural networks -- systems of nodes with weighted interconnections among them.