Instant Messaging Alan Parker Robert Callow Brian Kearney Fortunato Macari Daniel Harrington Chang...
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Transcript of Instant Messaging Alan Parker Robert Callow Brian Kearney Fortunato Macari Daniel Harrington Chang...
Instant Messaging
Alan Parker Robert CallowBrian Kearney
Fortunato MacariDaniel HarringtonChang Gong Wang
Introduction
• Text only
• America Online Instant Messenger
• Microsoft Network Messenger
• Webcasting
• Wireless
Brief History
• BBS was commonly used
• Early 90’s saw more internet activity
• Instant messaging came on the scene in 96 with ICQ
Instant Messaging
• Clients are used to chat with others
• Maintain Buddy lists
• Change states
• Can be customised
Instant Messaging
• Users require to log in
• Buddy lists stored on server
• Possible to search for users
• Person’s user name is required to chat
Instant Messaging
• Closed source
• Proprietary communication protocols
• Strong competition between major players
Instant Messaging
• Most IM clients are closed source
• Most use proprietary communication protocols
• Strong competition between clients
AOL Instant Messenger
• AIM is America On-line’s IM client
• Currently the largest with 53 million active users • AIM supports encrypted messaging
• Automatically scans files for viruses
• No offline messaging
Yahoo Instant Messenger
• Don’t have to download a client
• Must have a yahoo e-mail account
• Integrates well with other Yahoo services
Microsoft service Network (MSN)
• Need to create a .net passport
• Comes with most windows installations
Text Only
• Forums, BBS, IRC
• Public servers usually organized into rooms each with its own topic
• Public rooms don’t always need authentication
Internet Relay Chat (IRC)
• IRC is open-source, open-protocol
• Uses plain text
• Users needs to have a nickname but not a password
• Administrative power given to certain users
Webcasting
• Broadcasting video or audio over the web either live or delayed
• Uses streaming media technology
• Web casting usually refers to non-interactive streams or live events
• Used extensively in commercial sector for E-learning
Wireless
• Wireless instant messaging is available for hand held devices
• AIM Yahoo Msn have versions for these devices
• A commonly used method of this is SMS
GAIM & Trillian
• GAIM and Trillian allow different IM’s to communicate with each other
• AIM Yahoo and MSN oppose this
• GAIM and Trillian are the IM’s of tomorrow!
GAIM
THANK YOU