PURPOSE: To execute the system generation at the remote area by a hardware maintenance crew only who does not have the technics of the system generation by using the operatable operating system with the floppy base to be able to use the public telephone circuit.

CONSTITUTION: A system generated computer 1 is raised at the disk base by using a system disk 1a and a remote installed computer 2 is raised at the floppy disk base by using a floppy disk 2c. Next, at the system of the system generated computer 1, the data are read from the system disk 1a, the program to transfer the public telephone line 4 is started, at the system of the remote installed computer 2, the data are received from the public telephone line 4 and the program to write at a system disk 2a is started. Transmission and reception are repeated, the system disk 2a is copied from the system generated computer 1 to the remote installed computer 2, and the system generation is completed.