Siri, Apple's voice-controlled digital assistant, has been around since 2011, when it debuted on the iPhone. But since then, it has become vastly more powerful and useful, and has spread across Apple's entire ecosystem--it now runs on iOS, macOS, Apple Watch, Apple TV, and HomePod. Siri can now listen and speak in a wide range of languages and accents, perform a long list of helpful day-to-day tasks, and keep you entertained in the process.