Calendar wiki:
endar is a system for naming periods of time, typically days. These names are known as calendar dates. The dates may be based on the perceived motion of astronomical objects. A calendar is also a physical device (often paper) that illustrates the system (for example, a desktop calendar) â this is the most common usage of the word.
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Simple wiki:
puting">computing, SIMPLE (Session Initiation Protocol for Instant Messaging and Presence Leveraging Extensions) is an instant messaging (IM) protocol. In contrast to the vast majority of IM software deployed today, SIMPLE is an open standard.SIMPLE applies the Session Initiation Protocol to the problems of:Registering for presence information and receiving notifications when such events occur, for example when a user logs-in or comes back from lunch.Managing a session of real-time messages between two or more participants.SIMPLE is currently (2003) IETF work in progress, taking place in the simple workgroup. Some parts have been standardized, e.g. RFC 3428. Other parts, in particular IM sessions, are still under discussion. However, several implementations are already available, notably including the Microsoft Windows Messenger.
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