There is disclosed a commodity information registering apparatus which
registers commodity information while a commodity is moved, comprising a
radio tag reading section which reads a radio tag within a first field to
acquire commodity identification information stored in the radio tag, an
optical reading section which reads a code symbol within a second field
to acquire commodity identification information described in the code
symbol, and a registering section which registers one of the commodity
information corresponding to the commodity identification information
acquired from the radio tag and the commodity information corresponding
to the commodity identification information acquired from the code
symbol.