In addition to configuring software, the IT staff can create a , which includes screens, commands, controls, and features that enable users to interact more effectively with the application.

user interface

Explanation:

User interface is basically a way of interaction between a user and an application/computer. A user can interact with an application or a websites through:

Various applications are being used by companies for various purposes. They can be web or mobile applications. The user can control the applications via the interface. The user operations and experience get better with more effective and interactive applications and a user friendly interface can provide with this effective interaction.

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.