3270 Terminal

The IBM 3270 terminal is an early computer interface device used primarily in mainframe environments. It provides a text-based user interface, allowing users to input and retrieve data from large central computers over a network. Designed for reliability and efficiency in processing, the 3270 terminal communicates with the mainframe via a specialized protocol, often through a dedicated line. Although technology has advanced, the 3270's architecture influenced modern terminal and terminal emulation designs, serving as a foundational tool for data entry and business transaction processing in large organizations.