Patent ID: 8806352

Claim:
A system for use by a plurality of users, each of the users having an input apparatus for providing an input of data, the system comprising: display logic providing a display presentation on a display of an image for viewing by a plurality of the users; input logic permitting concurrent input by at least two of the users, while providing the display presentation to each said user of the display of the image relative to which the input is made by each said user to each generate respective data; index logic associating said respective data for each said user providing the input; memory providing non-transitory storage of the data from each said respective user in a respective separate data layer from a plurality of data layers, responsive to the index logic; storage logic, responsive to the index logic and the input logic, for controlling storage to and retrieval of the data from the respective said data layer in the memory that is associated with the respective said user; selection logic providing a selection of selected users from the plurality of users; and wherein the display logic provides an updated said display presentation representative of the input generated by the selected users, provided responsive to the data retrieved from the data layers associated with the selected users.