What is a User Interface?

The Way You Connect to Something to Use It

You are a user when you use a computer and you connect yourself to the computer through an interface. Hence the term user interface or UI. The two most common references to user interfaces are as follows:

• Graphic User Interfaces
• Terminal User Interfaces
• Command Line User Interfaces
• Conversational User Interfaces

The field of HCI studies different ways humans can interact with devices.