youdao

Above the kernel, running in user mode, are the device drivers, each one running as a separate process tightly restricted by the memory management hardware to accessing only its own memory.

设备驱动处于内核之上，运行在用户态。每个驱动都作为单独的进程运行，受到内存管理硬件的严格约束，只能访问自己拥有的内存。

youdao

Change the trust level to Restricted and you block all access to your PC from the specified device.

将信任级别改为受限，你就能阻止特定设备对你的PC的一切访问。

youdao

The system is not dependent on a customized bridge, transmitting device or pre-determined restricted special network.

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For someone who needed to make sure his sick cat got special food not available to his healthy cat, an Arduino motherboard controlled a device, using a converted CD player, that enabled and restricted access to a bowl.

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