Picture: What is these parts of the PC called?

[Thomasemmm]

Here is a link to the picture:
http://s1027.photobucket.com/user/Thomasemmm/media/Mobile%20Uploads/image_zpsjfyu12dx.jpg.html
I think the thing with the GREEN circle around is the HARD DRIVE, is it?
And I have no idea what the part with the RED circle around is?
Sorry I'm a PC noob.
Thanks in advance!

 

[Kiril1512]

Red - Optical Drive or CD/DVD Drive
Green - Hard Drive

 

[OriginalCadaver]

Red --> most likely CD/DVD drive
Green --> Hard Drive