I do not know how to make my cd player in my computer work. I know how to put the CD in the player, but not how to make it paly music. How do I make it play music?

You have to have Windows Media Player or Real One installed

Windows Media Player or CD Player comes with all versions of windows, look on the Start Menu in the Accessories, Media, or Entertainment sub-menus

usually autoplay is turned on by default, but it may have been turned off accidentally, so you could put the cd in the drive, open My Computer, right-click on the cd drive icon and click on Play on the menu

if for some reason Windows Media Player isn't installed or working properly you could install the Gabest Classic Windows Media Player (http://sourceforge.net/project/showfiles.php?group_id=82303&package_id=84358) - basically it is the old WMP from Win98, but it works in all versions of Windows
(you can also get plugins for it that let you play Real and Quicktime files, so you dont have to install either of those programs)

push play