What is WordPress and explain its features?
WordPress is a free and open-source software. It is free to install and use. As a new user you can easily create a website of your own that too absolutely free. It never has any type of hidden charges once a user started using it. Being an open-source, you can alter the source-code according to your need.
What is the functionality of WordPress?
You can create Posts and Pages, format them easily, insert media, and with the click of a button your content is live and on the web. WordPress makes it easy for you to manage your content. Create drafts, schedule publication, and look at your post revisions.
WordPress was originally meant for blogging, and still remains a top CMS for simplified blogging. Managing users is essential for larger websites. Through WordPress, you can control users, roles and specific permissions. Provides an extensive amount of plugins and possibilities for functionality improvements
Other popular CMS' that can be user for blogs are Joomla, and Drupal
source google
80.6% United States of America (the) 
11.2% Russian Federation (the) 
4.9% China