When we talk about user interface (UI) in computing, we’re referring to how a computer program or system represents itself to its user, usually via graphics, text and sound. We’re all familiar with the typical Windows and Apple operating system where we interact with icons on our desktop with our mouse cursors. Prior to that, we had the old-school text-based command-line prompt.
The shift from text to graphics was a major leap initiated by founder of Apple, Steve Jobs, with his hallmark Macintosh operating system in 1984. In recent years, we’ve also witnessed innovated UI that involved the use of touch (e.g. smartphones), voice (e.g. Siri) and even gestures (e.g. Microsoft Kinect). They’re, however, pretty much in their primary stages of development.
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