agnetic disc (including a flexible disc (FD)), an optical disc(including a compact disc-read only memory (CD-ROM), and a digital versatile disc (DVD)), a magneto-optical disc (including a Mini Disc (MD)), or a semiconductor memory, on which the program is recorded, or a medium, which is provided to a user as amedium pre-installed in the computer, such as a ROM or a hard disc, on which the program