This tutorial is for the Mac operating system OS X, version 10.4, which is called Tiger.
If you have an earlier version, some of the commands and features may be slightly different.
Mac and Windows computers are more similar than they are different.
So, if you're a Windows user, you can become Mac proficient quickly.
Don't let the size of this tutorial make you think otherwise.
For example, the biggest difference is substituting the Mac Command key for the Ctrl key.
If you can remember that, you'll do fine.
Use a USB flash drive to bring your photographs to class.