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Why do countless supermarket checkouts, restaurant tills, automated-teller machines use touch-screens?

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Варианты ответа
Touch-screens are much cheaper than keyboards and mice
Touch-screens allow using several mice at once
Touch-screens do not allow rapid typing does not matter(Верный ответ)
Touch-screens allow using Windows and Linux
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Modern operating systems aren't able to cope with touch-screens.
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Верно ли следующее утверждение:

Touch screens have grown in All-in-Ones in part because they work well in retail environments.

Верно ли следующее утверждение:

Matte screens have higher contrast and brightness than glossy screens.

Верно ли следующее утверждение:

Wireless brings countless benefits.