iChat was an instant messaging software application developed by Apple Inc. It was originally introduced in 2002 as part of the Mac OS X operating system. iChat allowed users to communicate with each other via text, audio, and video chat, and it supported several messaging protocols, including AIM (AOL Instant Messenger) and later XMPP (Jabber). The application included features such as video conferencing, file sharing, and integration with the Address Book to allow users to easily connect with their contacts.
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