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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This paper describes the mechanism of an EPROM (erasible programmable read-only memory) and the fast-writing mode.

本文论述EPROM（可擦除可编程序只读存贮器）的机制和快写方法。

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The expensive, 64-megabyte memory cards found in top-end MP3 players hold only a dozen or so songs in high-sound-quality mode.

CNN: All Music, All the Time