Noun
instant messaging (uncountable)
(communication, computing) A form of realtime communication where two or more people exchange text messages, usually short, using computers or other devices with communications capabilities.
Instant messaging and chat rooms have basically created a level playing field for deaf people. Vint Cerf
They also can combine voice with instant messaging and online file sharing. Niklas Zennstrom
Instant messaging applications such as Psi and Fire can automatically secure messages when GnuPG is installed and configured. Source: Internet
Instant messaging faces greater threats as more enterprises begin to utilize it, making it a more appealing target to hackers. Source: Internet
Instant messaging programs are becoming a favorite target among malicious code writers, according to one security vendor. Source: Internet
Instant messaging application WhatsApp is introducing a new feature that will mean messages will disappear after seven days. Source: Internet