A cardiopulmonary bypass system comprising: a processor; and a touchscreen comprising a graphical user interface operably connected to provide user input to the processor and to display measured data pertaining to one or more parameters outputted from the processor, wherein the graphical user interface is provided with a central portion divided into a plurality of sections, wherein at least one section displays an untabbed display page and at least one section displays a plurality of tabbed display pages, and wherein the untabbed display page comprises a plurality of sensor modules and at least one tabbed page comprises a plurality of sensor modules, wherein each tabbed display page comprises a tab, and wherein each tabbed display page is displayable in a displayed mode and in an overlaid mode, wherein when displayed in the displayed mode substantially all of the tabbed display page is viewable, and when displayed in the overlaid mode only the tab of the tabbed display page is viewable, wherein only one tabbed display page of the at least one section that displays the plurality of tabbed display pages is displayed in the displayed mode at a time, and the rest of the tabbed display pages are displayed in the overlaid mode, wherein each tab is activatable by touch or pressure exerted on the touch screen by the user, wherein activation of the tab by touch or pressure causes the associated tabbed display page to be displayed in the displayed mode and the rest of the tabbed display pages to be displayed in the overlaid mode, and characterized in that each tab is capable of transitioning to an alarm state so that when the corresponding tabbed display page is displayed in the overlaid mode and any sensor module of the corresponding tabbed display page transitions to an alarm state, the tab transitions to an alarm state that is viewable. a processor; and a touchscreen comprising a graphical user interface operably connected to provide user input to the processor and to display measured data pertaining to one or more parameters outputted from the processor, wherein the graphical user interface is provided with a central portion divided into a plurality of sections, wherein at least one section displays an untabbed display page and at least one section displays a plurality of tabbed display pages, and wherein the untabbed display page comprises a plurality of sensor modules and at least one tabbed page comprises a plurality of sensor modules, wherein each tabbed display page comprises a tab, and wherein each tabbed display page is displayable in a displayed mode and in an overlaid mode, wherein when displayed in the displayed mode substantially all of the tabbed display page is viewable, and when displayed in the overlaid mode only the tab of the tabbed display page is viewable, wherein only one tabbed display page of the at least one section that displays the plurality of tabbed display pages is displayed in the displayed mode at a time, and the rest of the tabbed display pages are displayed in the overlaid mode, wherein each tab is activatable by touch or pressure exerted on the touch screen by the user, wherein activation of the tab by touch or pressure causes the associated tabbed display page to be displayed in the displayed mode and the rest of the tabbed display pages to be displayed in the overlaid mode, and characterized in that each tab is capable of transitioning to an alarm state so that when the corresponding tabbed display page is displayed in the overlaid mode and any sensor module of the corresponding tabbed display page transitions to an alarm state, the tab transitions to an alarm state that is viewable.