The device often referred to as a personal digital assistant (PDA) is a handheld device designed to manage personal information and tasks. PDAs typically include features like calendars, contacts, note-taking, and task management, making them practical tools for organization and productivity. While many PDAs have evolved into smartphones, the term originally referred to devices that provided basic functionalities for personal and business use. PDAs were significant precursors to modern mobile technology, paving the way for more integrated and multifunctional devices.