One of the more important assumptions in Microsoft’s design of Windows 8 comes from the company’s observations of how people used touch on smartphones and tablets. Microsoft clearly understood that touch was a key way people interacted with the screens on their various mobile devices.
However, the reason people adapted to touch so fast is that on smartphones and tablets, the finger is the best option for navigating content on a small screen. There is no room for a trackpad or mouse on these products, and touch input was deemed the best form of navigation at the time. Of course, user interfaces on small screens are bound to someday include more use of voice and gestures, but touch will still be the main form of input and navigation on these smaller-screen personal computers for many years.
On the other hand, PCs and laptops have bigger screens and have used keyboards…
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