《Operating System Concepts》学习第 67 天，p767-p776 总结，总计 10 页。

一、技术总结

1.Linux kernel

The operating-system kernel of a Linux system.

2.Linux system

The kernel, programs, and files that comprise a complete, runnable Linux system.

3.Linux distribution

A Linux system plus administrative tools to simplify the installation, upgrading, and management of the system.

二、英语总结(生词：1)

1.drastically

(1)drastic

adj. likely to have a strong effect(极端的，猛烈的)。

(2)drastically

adv. extremely, very。

(3)示例

With Windows 10, the student can examine a modern operating system whose design and implementation are drastically different from those of UNIX(《Operating System Concepts》第 774 页)。

关于英语的注解同步更新汇总到 https://github.com/codists/English-In-CS-Books 仓库。

三、其它

第 19 章(Networks and Distributes Systems)简评：关于网络部分的内容(OIS 模型)，在实际开发中用得相对较少一些，但需要了解。

四、参考资料

1. 编程

(1) Abraham Silberschatz，Peter Baer Galvin，Greg Gagne《Operating System Concepts》：https://book.douban.com/subject/30272539/

2. 英语

(1) Etymology Dictionary：https://www.etymonline.com

(2) Cambridge Dictionary：https://dictionary.cambridge.org

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