《Operating System Concepts》学习第 41 天，p489-p489 总结，总计 1 页。

一、技术总结

无。

二、英语总结(生词：3)

1.merely

(1) merely:mere("pure") + -ly

adv. only, nothing more than(仅仅，只是)。

(2)示例

These columns(柱子) have no function and are merely decorative.

2.incidental

(1)incident: in-("in") + cidere("to fall")

c. an event that is either unpleasure or unusual.

(2)incidental

adj. accompanying but not a major part of sth(附带的)。

(3)示例

In many cases, the main job is I/O, and the computing or processing is merely incidental(《Operating System Concepts》第 489 页)。

3.embodiment

(1)embody: em("in") + body

vt. give a tangible or visible form to (an idea, quality, or feeling)(具体表现，具身化)。

(2)embodiment

(3)示例

Next, we discuss the I/O services provided by the operating system and the embodiment of these services in the application I/O interface(《Operating System Concepts》第 489 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

今天没有什么想说的。

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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