Neither a memory management unit nor an instruction or data cache are used.
这既不需要使用内存管理单元，也不需要使用指令或数据缓存。
On the extreme end, ports like uClinux and ELKS target processors that are "too small" for regular Linux; in particular, systems without a memory-management unit that can support virtual memory.
具体来说，系统没有一个可以支持虚拟内存的内存管理单元。
One example is the ability for Linux to run on a process with a memory management unit (MMU), as well as those that provide no MMU.
一个例子是Linux可以在一个具有内存管理单元(MMU)的处理器上运行，也可以在那些不提供MMU的处理器上运行。
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