The standard release of Drupal, known as Drupal core, contains basic features that can be used to
create a classic brochure website, a single- or multi-user blog, an Internet forum, or a community website
with user-generated content.
There are thousands of additional modules (known as contributed or “contrib”
modules) that extend Drupal core’s functionality, covering a broad spectrum of capabilities, including
e-commerce, social networking, integration with third-party applications, and multimedia.
Click “Add content” link to get started
1.Article Dynamic content like blog post
2.Basic page Static content like About us
More can be found in this book Beginning Drupal 8 
For drupal module