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。

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We've happily given away responsibility for garbage collection, memory management, and hardware differences.

我们很高兴不用再操心垃圾回收、内存管理和硬件差异。

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Along with the shift in hardware away from disk-centric and toward memory - and processor-centric data management, flexible technologies are being developed to address different database workloads.

除了硬件从以磁盘为中心转移到以内存和处理器为中心的数据管理外，一些用于解决不同数据库工作负载的灵活的技术也在开发中。

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