Every application consists of three parts.

They are

  • User Interface
  • Business logic
  • Data base

User Interface:

User interface acts as an interface between user and the application.

Business Logic:

It is the code written by the developer which makes the functionality to work.

DataBase:

The complete information of the users is stored in the database in the form of tables.

Note:

UI is of two types:

  • GUI(Graphical User Interface)
  • CLI(Command Line Interface)

1. GUI:

  • It is easy to access.
  • It is less secure.
  • User uses GUI.

2. CLI:

  • It is difficult to access.
  • It is more secure.
  • Server uses CLI.

Thanks….