What are user interfaces in computer?

User interfaces are the access points where users interact with designs . They come in three formats: Graphical user interfaces (GUIs)—Users interact with visual representations on digital control panels. A computer’s desktop is a GUI. Voice-controlled interfaces (VUIs)—Users interact with these through their voices.

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What is called interface?

1a : the place at which independent and often unrelated systems meet and act on or communicate with each other the man-machine interface. b : the means by which interaction or communication is achieved at an interface. 2 : a surface forming a common boundary of two bodies, spaces, or phases an oil-water interface.

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