Meaning – The term panel, refers to a particular arrangement of information grouped together for presentation to users in a window or pop-up. In ISPF, a panel is a predefined display image that you see on a display screen.
A panel PC is a personal computer built into a flat-screen display so that the entire computer can be mounted in any manner available for mounting a display alone. It eliminates the need for a separate space for the computer. A panel PC is typically ruggedized for use in industrial or high-traffic settings.
In computer graphics, a display image defines the locations and characteristics of display fields on a display surface.
Example of usage – “In modern multiple-document interface software a panel refers to a particular arrangement of information grouped together and presented to users docked in the user interface rather than floating in a window, pop-up, or dialog box.”