If you wish to educate yourself further, stick around the forums and read.
Get some older CompTIA A+ Certification books.
If you have $50, a really good book is Upgrading and Repairing PCs by Scott Mueller. Get the latest edition if you want to know all in the ins and outs of modern computer technology.
There are diagrams and descriptions of every part. Hard drives to CD-ROMs themselves. The obscure to the obvious. I have an older 13th edition and it served me well, need to get the latest edition myself.