The ability of a pen based computer to recognize handwritten characters and the basic marks, or gestures, that allow the user to perform certain tasks.
Gestures are hand-written signals that function as application commands.
For example, in one pen operating system an X, or crossout, deletes whatever is beneath it. An object-oriented software architecture that facilitates applications to be built that interface with existing software components. The information created when a user moves a stylus across the screen of a pen computer. The screen's built-in digitizer captures the strokes of the stylus and renders them in pixels on the screen, imitating the way a pencil leaves marks on paper. An acronym for graphical user interface, it is the design for the part of the program that interacts with the user and employs a graphical display that is easy to use and understand.