In order to make application development get rid of bottom hardware restriction, and to invoke hardware device through a general interface, device interface is defined in SCA system.

为了使应用的开发摆脱底层硬件的制约，使应用能通过一个统一的接口调用硬件设备，在SCA系统里定义了设备接口。

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The device interface defined in SCA system can shield the details of hardware function implementation and release the toplevel waveform application development from bottom hardware restriction.

SCA系统里定义的设备接口能屏蔽硬件功能实现的细节，使上层波形应用的开发摆脱底层硬件特性的制约。

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Hardware can be kept behind locked doors, but often employees find this restriction a hindrance, so security is lax.

硬件可以锁起来，但雇员常常觉得这种约束很麻烦，因此安全措施也就松弛了。

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Evangelho says that a used games restriction would drive gamers to another platform, but argues that because companies lose money on hardware, those cheap gamers would actually become a financial burden.

FORBES: Prediction: Neither Xbox 'Durango' nor PS4 Will Block Used Games