What is Siri?

Siri is a virtual assistant developed by Apple Inc. that is available on Apple devices such as iPhones, iPads, Macs, Apple Watches, and Apple TVs. It uses voice recognition, natural language processing, and machine learning to answer questions, make recommendations, and perform actions by delegating requests to a set of internet services. Users can activate Siri using their voice or by pressing a button. Common uses include setting alarms, sending messages, making calls, playing music, getting directions, and controlling smart home devices.