Mounting CD-ROM (newbie)

[Rick Todd <rdtodd@i2020.net>]

I'm trying to install Debian on a Mac IIfx. I have successfully installed
the base system. I don't know how to install packages off the CD-ROM. How
do you create a mount point? What is a mount point. And/or, what is a block
device name (comes up in dselect when I say cd-rom as access)?

This is my first experience with linux and Debian both. I have surfed the
archive and the (x86-centric) User's Manual. I think I am missing a simple
step or a simple command.

Actually, what I am missing experience, but I thank you for any help.

Rick