Patent ID: 8826147

Claim:
A system for user by a plurality of users, each of the users having a display apparatus and an input apparatus, the system comprising: grouping logic associating a plurality of the users into at least one group, each said group comprised of at least two of the users; display presentation logic providing a display presentation to all of the users in all of the groups, of a same base image display; input control logic permitting concurrent input of annotations by a plurality of the users, each said input generating corresponding annotation data, wherein said input is made while the users are viewing the same base image display; non-transitory memory structured as storage comprised of a plurality of addressable areas of memory; mapping logic associating each said addressable area of memory with one said user, for each of a plurality of the users; storage logic storing the annotation data for a respective said user in the addressable area of memory associated with said user, for each of the users, responsive to the mapping logic and the input control logic; group mapping logic, providing for each said group, selection of the addressable areas of memory associated with the users in said group to comprise a selected set of areas associated with said group; group display presentation logic, providing for each said group, generation of a modified display presentation shown to the users in said group, responsive to the selected set of areas associated with said group.