Instant Messaging Nil Lakavivat Stanislav Goryachev Calle Spång.

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Presentation transcript:

Instant Messaging Nil Lakavivat Stanislav Goryachev Calle Spång

Content Introduction History Different protocols, clients Standardization attempts Additional features

Introduction Real time, text based communication between two or more people The messages are transfered over a network. Examples (active accounts) – QQ (783 million) – Skype (309 million) – Windows Live Messenger (294 million) – Yahoo! Messenger (248 million)

History Predecessors (mid 1960s) Quantum Link (late 80s- early 90s) IRC (late1980s) ICQ (1996) Jabber (2000) Instant messanger – service mark

Protocols Standardization NameCreatorLicenseTransport Layer Security Spam protection MSNPMicrosoftProprietaryNo OSCARAOLProprietaryYesClient based XMPPJaramie Miller OpenYes QQTencent IncProprietary?? Skype Proprietary??

Clients NameCreatorReleasedTypeOS AdiumAdam Iser, Evan Schoenberg 2001Multi protocolOSX AOL Instant Messenger AOL1997Single protocolWindows, OSX, Linux Google TalkGoogle Inc.2005Dual protocolWindows, Web based ICQMirabilis1996Single protocolWindows SkypeNiklas Zennström, Janus Friis 2003Single protocolWindows, OSX, Linux QQTencent1999Single protocolWindows, OSX, Linux Windows Live Messenger Microsoft2001”Dual protocol”Windows

Pros & Cons Pros – Easy and fast communication – Distance – Conference Meetings Cons – Security risks – Inappropriate use – Privacy