github上Fuchsia项目相关文章翻译 - Relationship with LK (fuchsia-mirror/magenta/mg_and_lk.md)

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Magenta and LK - Magenta和LK的关系
LK is a Kernel designed for small systems typically used in embedded applications. It is good alternative to commercial offerings like FreeRTOS or ThreadX. Such systems often have a very limited amount of ram, a fixed set of peripherals and a bounded set of tasks.

　　LK是专门为嵌入式设计的小型内核（百度百科上说LK只是整个系统的引导部分，所以它不是独立存在），它能很好的替代FreeRTOS和ThreadX之类的商业产品。这类系统通常只有很小的内存，一些固定的外围设备，以及有限几个任务（task是计算机术语，可以百度）。

On the other hand, Magenta targets modern phones and modern personal computers with fast processors, non-trivial amounts of ram with arbitrary peripherals doing open ended computation.

　　另一方面，Magenta是面向现代化的手机和个人电脑而设计开发的。这些设备通常拥有很快的CPU，N个G的内存，多种多样的外设，而且能进行开放式的计算。
　　
Magenta inner constructs are based on LK but the layers above are new. For example, Magenta has the concept of a process but LK does not. However, a Magenta process is made of by LK-level constructs such as threads and memory.

　　Magenta的内部结构是基于LK设计的，但其上层组件全是新开发的。比如：Magenta有进程的概念，而LK没有；但是，一个Magenta的进程是由LK的线程和内存概念组合而成的。
　　
More specifically, some the visible differences are:

　　以下是一些更加明显的区别：
　　
• Magenta has first class user-mode support. LK does not.
• Magenta is an object-handle system. LK does not have either concept.
• Magenta has a capability-based security model. In LK all code is trusted.

• Magenta支持一级用户模式，而LK不支持
• Magenta是基于对象和句柄的概念而设计的系统（百度一下“内核对象”了解更多），而LK不是
• Magenta存在安全模式，而LK不存在

Over time, even the low level constructs will change to accomodate the new requirements and to be a better fit with the rest of the system.

　　随着时间的推移，Magenta的底层架构也会为了适应新的需求而发生变化。