  Vision of ferromagnet/semiconductor hybrid as a strongly coupled but flexible
spin system is presented. We analyze the experiments and argue that contrary to
the common sense the nonmagnetic semiconductor plays a crucial role in
manipulating of ferromagnetism. The magnetism of the hybrid (magnetic
hysteresis loop and the orientation of magnetization vector in space) is tuned
both optically and electrically with the help of semiconductor. As a result the
hybrid represents an elementary magnetic storage with electronic record and
readout
