 Graphical Data Display Manager

The Graphical Data Display Manager (GDDM) is a software tool developed by IBM, primarily used in mainframe environments. It enables users to create and manage graphical displays and presentations of data, often in conjunction with IBM's mainframe systems. GDDM allows users to visualize data in various forms such as charts, graphs, and maps. It provides a graphical interface for programming and data manipulation, making it easier for users to interpret and analyze data from large databases or mainframe applications.