This document discusses the history and uses of smartphones and mobile phone technology. It notes that smartphones have evolved from basic 2nd generation phones in the early 1990s to 3rd generation phones in the 2000s that provided internet access. Smartphones now provide portable access to entertainment, social media, organization tools, and other applications. They are used in hospitals, museums, and education. While smartphones have benefits like improved communication and organization, there are also criticisms about potential negative health effects and increased stress. The document concludes that mobile technology plays a major role in everyday life and its importance is expected to continue growing.