Compounds. There are more carbon compounds than there are compounds of all other elements combined. The study of carbon compounds, both natural and synthetic, is called organic chemistry. Plastics, foods, textiles, and many other common substances contain carbon.
backplane is the shared capacity between interfaces on a switch switch fabric is also the shared capacity between interfaces on a switch and can also be the shared capacity between interfaces on multiple switches using some sort of interconnect, typically vendor specific.
Source code analysis is the automated testing of source code for the purpose of debugging a computer program or application before it is distributed or sold. In Hyper-G and possibly other hypertext systems, a backlink is a link back to the page or one of the pages that currently link to the page you're using. Backlinks are already supported to some extent in the present Web system.