It comes from the Hawaiian word "wiki wiki," meaning quick. It is used to refer to software that many people can go in and change or add to. A wiki database has many authors, and people can collaborate by building on the work of others. For more information, see the "Related Links" section of this answer.
The non-physical part of your computer is called software, in opposition to the physical part, the hardware. For more info: http://en.wikipedia.org/wiki/Hardware http://en.wikipedia.org/wiki/Software
The first wiki was created by Ward Cunningham. Wikipedia, the most well known wiki, was founded by Jimmy Wales.
MediaWiki
Unfortunately, this would depend on which wiki software you are using.
A list of wiki software applications is available here: en.wikipedia.org/wiki/List_of_wiki_software
Wiki and Google. Be specific about what you need from what software.
Iterative waterfall model is a software process model also called the incremental process model. http://en.wikipedia.org/wiki/Iterative_and_incremental_development
The Wiki software can be purchased and placed on a private intranet.
jeve stob ans wiki
Wiki Chinese is a system manager know web are called wiki wiki in Chinese
Wikipedia is a wiki because the underlying software (Mediawiki) has the features commonly associated with a wiki site. The word wiki comes from Hawaiian for quick and a wiki site allows the content to quickly change since anyone can edit it.
Various indexes of wikis exist - there are some in the related links. You can also find them buy searching for a common string to the wiki software. For instance, almost all MediaWiki (the software that runs Wikipedia) wikis have the text This wiki is powered by Mediawiki, copyright (C) 2001