Patent ID: 7373605

Claim:
A method comprising: defining a primary display screen on a first display device, the primary display screen including a data display area and first and second linking areas; defining first and second secondary display screens on second and third display devices, respectively; mapping the first and second linking areas with the first and second secondary display screens, respectively; displaying first and second slides in the data display area concurrently; receiving a first user selection dragging the first slide into the first linking area, via the primary display screen; displaying the first slide in the first secondary display screen on the second display device based upon receiving the first user selection; receiving a second user selection dragging the second slide into the second linking area, via the primary display screen; displaying the second slide in the second secondary display screen on the third display device based upon receiving the second user selection, wherein the second slide is displayed in the second secondary display screen on the third display device at the same time as the first slide is displayed in the first secondary display screen on the second display device; receiving a third user selection of a secondary display screen interface control element that is provided proximate to the primary display screen and that is configured to control display of slides on at least one of the first and second secondary display screens in accordance with a history function or a shift function depending on whether the primary display screen is in a history mode or a shift mode; and based on receiving the third user selection of the secondary display screen interface control element: determining whether the primary display screen is in the history mode or the shift mode; conditioned on determining that the primary display screen is in the history mode, control display of slides on at least one of the first and secondary display screens in accordance with the history function comprising: accessing from electronic storage, a log file including display history information of slides previously displayed on at least one of the first and second secondary display screens during a current presentation; and controlling at least one of the first and second secondary display screens to display a slide previously displayed during the current presentation on the corresponding secondary display screen based on the accessed display history information included in the log file; and conditioned on determining that the primary display screen is in the shift mode, controlling display of slides on at least one of the first and secondary display screens in accordance with the shift function comprising at least one of moving the first slide to the second secondary display screen and moving the second slide to the first secondary display screen.