In the context of computer systems, one problem with physical tokens is that some sort of inputdevice is necessary for every client to the system.
在计算机系统环境中，物理标记的一个问题是必须为系统的每个客户机提供某类输入设备。
2
A large screen that serves as the primary inputdevice, a minimalist design, a proprietary Apple inputsystem and better-than-average battery life?
一个当作主要输入设备的大屏幕，一个抽象的设计，一个独有的苹果输入系统和优于平均水平的电池寿命？
3
It has taken the torch from the Wii controller by creating a system that doesn't require a controller at all, it instead USES the motion of the human body as its inputdevice.