What's is human computer interface ?

Human-computer interface (HCI) refers to the point of interaction between humans and computers. It encompasses the hardware and software components that enable users to communicate and interact with computers or computer systems. HCI focuses on designing interfaces that are user-friendly, intuitive, and efficient, allowing users to easily input commands and receive feedback from the computer. It involves various elements such as input devices (e.g., keyboards, mice, touchscreens), output devices (e.g., monitors, speakers), graphical user interfaces (GUIs), voice recognition systems, and other technologies that facilitate human-computer interaction. The goal of HCI is to enhance the usability, accessibility, and overall user experience when interacting with computers.