A content management system (CMS) is a computer application used to manage work flow needed to collaboratively create, edit, review, index, search, publish and archive various kinds of digital media and electronic text.
Among the many Content Management Systems (CMS) out there right now, doing a simple search on Google for "Content Management Systems" or plainly "CMS" will yield anywhere from 143,000,000 to 248,000,000 potential results.