LOADING FREQUENCY LIMITING METHOD

摘要

PURPOSE:To inhibit the use of a medium when the loading frequency reaches the prescribed value and to protect the copyright, by writing the loading frequency of the software on a computer to a medium to which the software is already recorded. CONSTITUTION:A computer 12 records the loading frequency of the software from a floppy disk 24 in an area where the rotational number of the disk 24 is recorded according to a program of a ROM6 and every time the software in the disk 24 is loaded to a RAM8 of the computer 12 from a driver 4. When the loading frequency of the disk 24 reaches a prescribed level, a frequency detecting means 10 works. Then the driver 4 works to erase all software and data recorded on the disk 24 by an indication given from the computer 12. Thus the use of the disk 24 is impossible hereafter.