Drupal 7 is a powerful content management system with many features for managing content, users, roles, permissions, themes, modules, blocks, and more. It allows easy creation of custom content types and fields. Users and roles can be customized. Themes and modules extend functionality. Drupal provides hooks to modify the system. Performance can be improved through caching.

1. Drupal 7
Basic - Introduction - Features - Overview

2. Drupal 7
Drupal 7 is the trended as one of the world strongest CMS . It has
so many features and the “n” number of enhancement portability
and flexibility. Using the drupal 7 you can easily manage your
content.
Using this CMS website can be build very quick and
simple.According to the recent statistics nearly 2 millions of
website running on drupal.

3. Key Features of Drupal 7
Listing out some of the very important features and topics of the drupal 7 :
● Node management - you can create your own content types
(like blogs,news,lessons etc) and include “n” number fields
with that.
● User & Role management - Handle itself with login and
registration system. Welcome notification email alter , you
can have permissions for the roles like add , edit , delete etc
● Themes - writing our theme for the drupal website. Also you
can extend the sub theme from the contributed themes.
● Modules - extend or modify the functionality of the website.

4. Key Features of Drupal 7
● Blocks and regions
● Hooks - Allows you the modify or extend the drupal core
system functionality.
● File Management - you can handle image and other documents
upload very easily by adding the fields.
let ‘s see the items one by one

5. content (or) Node Management
In the Technical term node - we call as a single entity. Node is
belongs to any one content type with combination of multiple
fields. Drupal 7 you can define your own type of content and
fields.
Example : Content Type - Fields like “Hospital” - Hospital Name ,
Hospital Address , Hospital Image , Hospital Phone Number etc.
After completion of this if you put a single each and every data
entry of hospital data are called node.
Manage content type : Admin => structure => content type

6. User & Role Management
Drupal 7 code has the features of user and role management. It
has default registration, login and permissions modules.
If you want you can extend the fields on the registration, add your
own role, you can define the permission to each roles. you can
also allow your user to perform such a actions like posting article,
reviewing article etc.
Drupal 7 :
Manage Users: Admin => people

7. Themes
which renders the back-end data into display with the help of
drupal template engine. Drupal comes with 4 default theme
bartik, garland, seven and stark. you can also install and use the
contributed themes or write your own theme.
Theme directory:
core Themes will be in root_directory/themes/list_of_themes.
contributed and custom themes should be on
root_directory/sites/all/modules/list_of_themes.

8. Themes
Basically Theme files are
.info file - which contains the information about the theme.
[required file]
template.php - which contains the themes functions and
preprocess methods.[required file]
.inc - own functions used for the module. [optional]
you can also have sub theme.theme also have the .tpl files of the
node, user, etc. you can also write own tpl files for the each
content type.
Manage theme: Admin => Appearance

9. Modules
modules will be used to extend the functionality of your website.
Basically Drupal 7 has Two types of module.
● Core Module - This type modules comes with default drupal
7 core download. [like node, user etc ]
● Contributed modules - Developed by the contributor of the
drupal community. developer need to install on the system if
need.
Apart from this you can derive your own customized module.

10. Modules
Modules directory
core module will be in root_directory/modules/list_of_modules.
contributed and custom module should be on
root_directory/sites/all/modules/list_of_modules.
Basically module files are
.info file - which contains the information about the module.
[required]
.module file - which contains the module functions and hooks
used.[required]
.inc - own functions used for the module. [optional]
Manage Modules : Admin => modules

11. Blocks and Regions
Blocks are the small pieces of the content you can show it on
anywhere in the website. Drupal have the regions like header,
footer, sidebar first, sidebar second, content top, content
bottom, main content etc. In case if we need, can have our own
region can be written in the theme files.
Manage blocks : Admin = > Structure => blocks

12. Views
views will help you render the content and displays to end user.
Reference : https://www.drupal.org/project/views
Manage Views : Admin = > Structure => views

13. Hooks
Hook methods are called when the actions are triggered in the
drupal system. the core has so many hook api method to extend or
modify the actions during its get executed.
for example : hook_form_alter - This method called when form is
get loaded.
hook_form_validate - this method called before get submitted.
like that so many hooks methods are there. This is one of the
coolest feature of the drupal.

14. Menu & Taxnomy
Menu - user can add edit menu items [Admin => structure =>
menu]
taxonomy - can add edit taxonomy [Admin => structure =>
taxonomy]

15. Performance
The important feature in drupal, ability to compress the js and css
files used in the web part to increase the performance for the
website using cache system. you can enable or disable the cache
system.
[Admin => configuration => Performance]

16. Thank U
Dhina M