An recipient who is sent a copy of an Email, but is not the primary addressee and is usually not expected to reply. The primary addressee are aware that the carbon copy recipient has received a copy of the message. The terminology goes back to the days when office communication was typewritten and carbon paper was used to produce several copies simulatanously.

Compare BCC.

In Unix tradition, the C Compiler binary is called cc, and among the MakefileVariables, there's one called CC which stores the name of the C Compiler to use. On a Linux system, cc is almost always a link to GCC.

On some proprietary UNIX OperatingSystems, such as Solaris, the default cc is just a Shell script that prints out something to the effect that you have not paid for the additional software development component of the system.