1. Sometimes abbreviated as RT, real-time is a term used to describe a process or event that occurs immediately. For example, chat occur in real-time, where messages are seen immediately after the user presses his or her enter key.
Examples of real-time or near real-time communication
- Chat (e.g. IRC)
- SMS or Text messaging
- Talking on the Phone and VoIP
- Two-way radio communication
2. RT is also an abbreviation for Retweet.