Defining the content type

We'll now take a look at the content type definition. To start, rather than click on the default choice of Manage fields, click the arrow next to that and select Edit:

Let's take a brief look at the settings in the preceding form:

• Name: This is the plain language name that the content type will be identified with. In this case, this is Article. To the right of this human-readable name is what is referred to as the Machine name, which is the internal name. This is generated automatically by Drupal, and is usually the lowercase version of the name, with multiple words having spaces replaced by an underscore.
• Description: This is a place to describe the purpose of the content type and, perhaps,  rules of its usage. The descriptive text entered here will be displayed along with the content type name when given a list of available content types to choose from when creating content.

Following these two fields is a series of vertical tabs that provide additional configuration items.