Some technologies once felt essential, only to disappear as innovation moved on. From devices that transformed everyday life to formats and platforms that shaped how people worked, listened, watched, and connected, these obsolete tools now belong to a different era. But how many of them do you actually remember? This look back at dead technologies invites you to revisit the inventions that were once groundbreaking, test your knowledge of the past, and see how quickly the digital world can change. Whether you experienced them firsthand or are discovering them for the first time, it is a chance to explore the technologies that history has left behind.