The keyboard; the mouse; the touchscreen: each new generation of computing has been accompanied by its own new kind of input device. But as we enter the internet-of-things era, no standard has yet been established.
键盘、鼠标、触摸屏，每一代新的计算机技术都伴随着一种新式的输入设备。但在我们进入物联网时代之际，输入领域还尚未建立起统一的标准。
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