WordPress is an open source CMS. Open source means that the source code of the system is made available with a license whereby the copyright holder provides the rights to study, change, and distribute the software to anyone and for any purpose (as Wikipedia defines it). CMS means a software application that can run a website (for example, a blog) and allows you to publish, edit, and modify the content. It's a piece of software that lives on the web server (more on what a web server is later on) and makes it easy for you to add and edit posts, themes, comments, and all of your other content. The following is the logo of WordPress:
Even though WordPress was originally a blog engine—used primarily to run blogs—it's now a popular solution among some of the biggest brands on the web and runs their entire websites. Brands such as The New...