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Specified Mind Map

General Mind Map

Messenger

Instant messaging (IM) is a form of real-time direct text-based communication between two or more people using Personal Computers or other devices, along with share software Clients. The user's text is conveyed over a network, such as the Internet. More advanced instant messaging software clients also allow enhanced modes of communication, such as live voice or Video Calling.

There are different types of messengers which are known for their instant messaging feature. We are going to get familiar to some of them:

Windows Live is the collective brand name for a set of services and software products from Microsoft, part of their Software Plus Services platform. A majority of these services are Web Applications, accessible from a browser, but there are also client-side binary applications that require installation on a user's PC. There are three ways in which Windows Live services are offered: Windows Live essentials applications, web services, and mobile services.


Yahoo! Messenger is an advertisement-supported instant messaging client and associated protocol provided by Yahoo!. Yahoo! Messenger is provided free of charge and can be downloaded and used with a generic "Yahoo! ID" which also allows access to other Yahoo! services, such as Yahoo! Mail, where users can be automatically notified when they receive new email. Yahoo! also offers PC-PC, PC-Phone and Phone-to-PC service, file transfers, webcam hosting, text messaging service, and chat rooms in various categories.
Yahoo! Messenger was originally launched under the name Yahoo! Pager on March 9, 1998.
In addition to instant messaging features similar to those offered by ICQ, it also offers (on Microsoft Windows) features such as: IMVironments (customizing the look of Instant Message windows, some of which include authorized themes of famous cartoons such as Garfild or Dilbert), address-book integration and Custom Status Messages. It was also the first major IM client to feature BUZZing and music-status. Another recently added feature is customized avatars. Yahoo Messenger also allows users to access Yahoo Chat Rooms.
Yahoo! planned to integrate Yahoo! Mail beta and Yahoo! Messenger, with conversations being archived and stored in the same manner as emails and allowing users to search within their chat logs easily, and to have them centrally stored and accessible from any computer. However, even though both an integrated messenger and a separate, Adobe Flex-based web messenger were released in spring 2007, the web archiving of chat sessions has only been added as a feature to the separate Web Messenger as of 2009.
Furthermore, unlike Google talk, for which Gmail provides an integrated archival of conversations, neither Yahoo! Mail nor Yahoo! Web Messenger provide any integration with the standalone Yahoo! Messenger client; as a result, archival of conversations in the Messenger desktop client and Web Messenger is separate from each other, and does not carry over from each other.

Skype (pronounced /skaip/) is a software application that allows users to make voice calls over the internet Calls to other users within the Skype service are free, while calls to both traditional landline telephones and mobile phones can be made for a fee using a debit-based user account system. Skype has also become popular for its additional features which include instant messaging, file transfer, and video conferencing. The network is operated by a company called Skype Limited, headquartered in Luxemburg and partly owned by eBay.
Unlike other VoIP services, the Skype Company does not run servers, but makes use of background processing on computers running Skype software—the original name proposed; Sky peer-to-peer (see below) reflects this.
Registered users of Skype are identified by a unique Skype Name, and may be listed in the Skype directory. Skype allows these registered users to communicate through both instant messaging and voice chat. Voice chat allows calls between pairs of users and conference calling, and uses a proprietary audio codec. Skype's text chat client allows group chats, emoticons, storing chat history, offline messaging and (in recent versions) editing of previous messages. The usual features familiar to instant messaging users—user profiles, online status indicators, and so on—are also included.