elaine.e
What you are looking for on your P.C is a pink hole in your computer that is for your Mike and the green hole is for your ear phones....You will be able to do a test on your computer on Speak...(all computers has it even lap tops)...Some times on the front of a tower or at the back..Normally has an enbost picture of a mike and of the head phone on the side of it..
Also the web cam also has a built in mike(far easy-er to use as the soft ware that come with is easy to set up)....Have a nice day..Chris
If you have a lap top the web cam lens(if it has one) should Be starring you in the face as you lift the lid up
In the middle at the top edge of the sreen