Navigation system

Navigation device, in particular for vehicles, with a data bus (3), with a data memory (2) on which a plurality of road map information and navigation data are stored, with a navigation computer (1) connected to the data bus (3) for route planning, with a data processing unit (30) connected to the data bus (3) for processing data into image information, wherein the data processing unit (30) contains an image memory (32) for storing the image information, with a screen (4) connected to the data processing unit (30) on which the image information can be displayed, with a communication block (20) with an operating unit (21) for start, intermediate destination and/or destination input of a route, wherein the data processing unit (30) has a map memory (38) for storing road map information.