Telex was a telecommunications system that allowed for the exchange of typed messages over long distances. It operated using a network of teleprinters connected through telephone lines, enabling users to send and receive messages quickly and efficiently. This system was widely used in business and government communications from the 1930s until the rise of fax machines and email. The Telex network utilized a unique addressing system, allowing messages to be sent directly to specific machines. It played a significant role in international communication, particularly during the Cold War, when secure and rapid messaging was essential for diplomatic and military operations.