A channel is a “gathering place” for IRC users and is either public (anyone can join) or private (users must use a password to gain entry or only invitees can join). Users can join more than one channel at a time or create their own channels. Channel names are strings of characters beginning with a “#” or “&.”
The first person that joins a channel effectively creates it and is, at least initially, in charge of the channel as a channel operator (“channel-op”). A channel will remain open until the last user exits. Channel operators control the channel settings and can designate other users as channel operators. By default, a channel is public. Any user can type a notice to send to a public channel, acquire a list of its users, or join the conversation. Users can easily be located on IRC unless a user’s mode is set to “invisible.”
Channel operators can change the characteristics of their channel by changing the mode settings. Some settings allow operators to —
- Make the channel accessible only by invitation.
- Allow only designated users to be able to post messages.
- Make a channel private or secret.
- Ban a user from entering the channel.
Channel means a single stream of recorded sound with a location in a sound field.
A channel is
|“||[a] magnetic track running along a length of tape that can be magnetized in bit patterns to represent data.||”|
A channel is
|“||[o]ne of a number of discrete frequency ranges utilized by a base station to transmit and receive information from cellular terminals (such as mobile handsets).||”|
- Auditing and Financial Management: Glossary of EDP Terminology, at 3.
- ITU Glossary of Mobile Cellular Terms 1 (1999) (full-text).