A sensing device for sensing a region provided on or in a surface having
at least one region. The at least one region having printed therein or
thereon coded data indicative of an identity of the at least one region,
and visible information at least some of the information being at least
partially related to the at least one region. The sensing device includes
a sensor for sensing at least some of the coded data when the sensing
device is placed in an operative position relative to the at least one
region and generating indicating data. The indicating data is at least
partially indicative of the identity of the at least one region and at
least one of movement and a position of the sensing device relative to
the at least one region. The sensing device includes a communicator
configured to communicate the indicating data to a computer system.