Abstract: A computer display system includes a display screen capable of flipping between portrait orientation and landscape orientation and includes a method for repositioning and resizing display windows in response to flipping between such oprientations of the display screen. The windows are moved and resized according to a set of rules to yield displays which take advantage of the new orientation. Where the computer display system includes coordinated, multiple display screens, images controlled for display on fixed-orientation display screens do not change as a result of a flip between orientations of a variable-orientation display screen.

Abstract: A computer video display acceleration system and method is disclosed for increasing the speed with which modifications can be made to video memory. This system and method uses a video buffer section in system memory with high priority access by a central processing unit which can use the buffer space to make changes rapidly in the stored video information. Once the changes are completed, the data stored in the buffer is written as a block of data to video memory without requiring additional video memory read cycles.