1. A method of processing data during use of a computerized system, the system comprising a touchpad, a processor, and a memory, the method comprising: obtaining touchpad data from the touchpad, wherein the touchpad data indicates: a contacted first area of the touch-pad contacted by a first portion of a first hand of a user, and first print information indicating a first pattern of epidermal ridges of the first hand in the contacted first area; communicating the touchpad data from the touchpad to the processor; with the processor, analyzing the touchpad data in accordance with an model of a human hand and determining an angle of rotation based on the first print information; with the processor, associating the first area with a particular anatomical portion of the first hand, wherein the associating is based at least in part on the model, the first area, and the first print information; and storing the association of the first area with the particular anatomical portion in the memory.