Patent ID: 8890893

Claim:
A data processing and display system comprising: a control module within a more secure computer system domain, the control module receives only a predefined set of data in a matrix of fixed size from one or more less secure computer system domains having a lower level of security than the more secure computer system domain, and manages a display of the received predefined set of data in the fixed size matrix from the one or more less secure computer system domains as only passive data and manages a display of active data from the more secure computer system domain at the same time, a display device coupled to the more secure computer system domain, the display device displaying data received from the control module, the data received from the control module including the passive data originating from the one or more less secure computer system domains, and the active data from the more secure computer system domain, as managed by the control module, and an active zone of the display device for displaying the active data and for launching one or more commands for the more secure computer system domain, wherein the one or more less secure computer system domains comprise a separate distinct computer from the more secure computer system domain, and the matrix contains data generated by the one or more less secure computer system domains, the data comprising a predefined, predetermined number of displayable colors and a list of predetermined pixels to be displayed on the display device.