Commercial speech, however, is less protected by the First Amendment than political speech, and is therefore subject to greater regulation. The Free Press Clause protects publication of information and opinions, and applies to a wide variety of media.
In computer networking, multicast (one-to-many or many-to-many distribution) is group communication where information is addressed to a group of destination computers simultaneously.
In telecommunication and signal processing companding (occasionally called compansion) is a method of mitigating the detrimental effects of a channel with limited dynamic range. The name is a combination of the words compressing and expanding.