Google Now is a feature that was part of the Google Search app, designed to provide users with personalized information and updates. It uses data from various sources, including your location, search history, and calendar events, to deliver relevant cards that display information like weather, traffic, and reminders. Launched in 2012, Google Now aimed to anticipate users' needs by presenting information before they even asked for it. It was integrated into the Android operating system and later evolved into Google Assistant, which offers even more advanced voice-activated features and personalized assistance.