Instant Messaging and Live Communication
As the name suggests, instant messaging (IM) is the process of sending text or other data that arrives at its destination almost immediately. The most common forms are text messaging, in which the participants use their keyboards to conduct a conversation on a display screen, and audio or video messaging, where a microphone and/or a camera replace or supplement the keyboard.
Live messaging is more immediate than email because it arrives on the recipient's screen as soon as the originator hits the Send button, rather than waiting for a mail server to forward each message. Assuming the distant computer is turned on and the messaging program is running, the text appears on the screen or the sender's voice comes ...
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