A viewer is a graphical representation of a certain form of the world that is displayed to the computer user during each round. Depending on what information is available, a viewer may present a bird's-eye view representation of the grid field and situation at hand, the world statistics of each grid (such as the number of agents required to remove the debris and/or number of survivors), and/or the information of an agent's energy level.
A program designed to display files in certain formats. For example a viewer for image files, viewer for media files, etc. Acrobat reader is an example for a viewer of PDF files. ACDSee is a common viewer for image files.
A software utility that allows you to open and view any of a variety of file formats (typically GIF and JPEG)images online. WWWebfx Home Page