A content management system (CMS) allows publishing, editing, and modifying content as well as site maintenance from a central page. It provides a collection of procedures used to manage work flow in a collaborative environment. These procedures can be manual or computer-based.
The main features of Content Management Systems depend on the type of the system itself; oftentimes, some systems will highlight and/ or offer one or two features only, while other systems are “open-net” systems which attempt to offer all features with some features more predominantly marketed and developed – thereby making them more user-friendly and effective – than others
The following is a partial list of popular CMS features:
• Allow for a large number of people to share and contribute to stored data.
• Control access to data based on user role (i.e., define information users or user groups can view, edit, publish, etc.).
• Facilitate storage and retrieval of data.
• Control data validity and compliance.
• Reduce duplicate inputs.
• Simplify report writing.
• Improve communication among users.
• Define data as almost anything: documents, movies, texts, pictures, phone numbers, etc.



Data types and usage

In a CMS, data can be defined as nearly anything: documents, movies, text, pictures, phone numbers, scientific data, and so forth. CMS are frequently used for storing, controlling, revising, semantically enriching, and publishing documentation. Serving as a central repository, the CMS increases the version level of new updates to an already existing file. Version control is one of the primary advantages of a CMS.
In a CMS, data can be defined as nearly anything: documents, movies, text, pictures, phone numbers, scientific data, and so forth. CMSs are frequently used for storing, controlling, revising, semantically enriching, and publishing documentation. Serving as a central repository, the CMS increases the version level of new updates to an already existing file. Version control is one of the primary advantages of a CMS.

Nice post.CMS is very effective to maintain content.

CMS based websites hold many advantages over this old system. Simply speaking, it is a collection of procedures to manage work flow in a collaborative environment. Also, CMS offers separate structure for design and content. It's possible to change the design of your site without making any changes in the content structure.