Content Management System – customize the appearance of your site
A content management system or CMS is a software that facilitates creating, editing, organizing, and publishing content. WordPress is a Content Management System, that allows you to create and publish your content on the web. Although it is mostly used for web publishing, it can be used to manage content on an intranet, or in a single computer.
WordPress allows users to have full control over the files, documents, as well as the design and display of the content. You don’t have to know a single line of code to publish content using WordPress. The beauty of a good content management system is to allow any user to create and manage their content without any technical know-how.
In the earlier days, an average user or a small company had to rely on static HTML sites because they could not afford a CMS which would cost hundreds of thousands of dollars. That problem is now solved. WordPress is open source and free for anyone to use. read more, source: wpbeginner