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no... remember, linux and unix treat everything, harddrives, cdroms, modems, ect, as if they were files and directories. the /mnt/cdrom point on the hard drive is a pointer (node) on the virtual file system to the cdrom. same applies for the serial ports - /dev/ttySx, /dev/mouse, ect. that way, any program can easily access the device given just the name of the file - the kernel does all the hardware stuff.
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