Like voice input, gestures complement keyboard usage activity but will not replace the need for keyboard text entry.

如同声音输入一样，手势能够为键盘的功能起到补充作用，但是却不能取代键盘进行文本输入。

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The muscle-computer interface enables hand and finger input by means of gestures learned from an electromyographic recognizer collecting muscle signals from a band of sensors on the upper forearm.

而肌肉-计算机界面(muscle - computer interface)则使通过佩戴于前臂上端的一圈传感器收集肌肉信号，再通过肌电信号识别器解读手势动作，从而能够识别手掌和手指点击在皮肤上的信号。

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The researchers have developed ways to control gadgets, such as personal digital assistants (PDAs) and music players, using 3D sound for output and gestures for input.

BBC: NEWS | Technology | 'Body talk' could control mobiles

"Traditionally tablet and phone devices have needed to make a design compromise: choosing between multi-touch, capacitive glass that is responsive to fingertip gestures, or using a resistive display more suitable for stylus input that requires sacrifices in contrast, wear and tear, and need for calibration, " Gittleman said.

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