instant messaging(System Center Operations Manager 2007, Lync 2010 Rori); IM(Pertaining to a message sent in real time through a network to a private chat area; A method of real-time communication over the Internet in which a sender types a message to one or more recipients and the recipient immediately receives the message in a pop-up window); instant messaging(A method of real-time communication over the Internet in which a sender types a message to one or more recipients and the recipient immediately receives the message in a chat area)
IM(A method of real-time communication over the Internet in which a sender types a message to one or more recipients and the recipient immediately receives the message in a chat area)