A data entry system comprising a group of data symbols comprising at least one
of alphabetical symbols, numeric symbols, and commands (128-136), divided
into subgroups. Each subgroup is associated with at least a portion of the user's
finger (102-120). The system also comprises a keypad (126) defining
a plurality of keys, wherein each key contains at least one of the symbols. At
least one finger recognition system (100) is configured to recognize the
portion of the finger when it touches a key, and to select the subgroup symbols
associated with that portion of the finger interacting with that key.