Unless you are an advanced user, or you run into some sort of hardware or software problem, you'll almost never interact or even need to think about the kernel itself.
除非你是一个计算机高级用户，或者你要深入进去解决一些硬件或软件问题，否则你将永远不会接触到它，甚至不需要考虑到它的存在。
Once the software sees that there's a problem, it waits to see if the user has figured out a solution.
一旦软件发现这一问题，它会等待看用户是否有解决方案。
A UI is simply a piece of software that helps a user solve a problem—whether that problem is how to find a book from Amazon.com or how to control a nuclear reactor.
简单地说，UI是软件的一部分，它可以帮助用户解决各种问题，而无论这问题是如何在 Amazon.com找到某本书，还是如何控制核反应堆。
Another problem arises when the end-user is uncertain as to how their added software fits with the rest of their system and what additional security measures need to be taken.
当最终用户不确定他们添加的软件如何符合系统的其他部分，并且需要采取什么额外的安全量度时，会产生另一个问题。
Another problem arises when the end-user is uncertain as to how their added software fits with the rest of their system and what additional security measures need to be taken.
当最终用户不确定他们添加的软件如何符合系统的其他部分，并且需要采取什么额外的安全量度时，会产生另一个问题。
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