The present invention manages the information of storage apparatuses inside a single storage apparatus in an integrated fashion, under a heterogeneous storage environment in which a variety of storage apparatuses are distributed and deployed on a plurality of sub-networks. In this method, an n-type and a p-type ohmic contact electrodes are previously disposed, and then two pairs of distributed Bragger reflectors are formed. A method for performing a backup operation on the network includes the following steps. The total of corresponding modes that correlates the three-digit code with letters of alphabet is the factorial of 26, which is 4\xd71026. A phase locked loop compares the local oscillator frequency with a reference frequency and controls the tuned circuits of the IF filter and the local oscillator. Upon data input, the associated virtual keyboard is used.