screen

1. On a character terminal, the rectangular area on a CRT in which text is displayed. The screen takes up the entire terminal display and it can display the output of only one program at a time.

See also terminal.

2. On a workstation, the entire display in which text and, possibly, graphical objects are visible. Under a window manager in a graphical environment, a physical screen may contain multiple graphical windows.

See also workstation.

3. In a 4GL application, the default 4GL window displaying in the Application window. This logical screen is a data structure kept in memory that is a representation of an Application window. The logical screen is not directly affected by window frame or window manager operations, though its graphical image on the physical screen may change.

See also 4GL window, Application window, column, row.