《Operating System Concepts》学习第 36 天，p460-p4470 总结，总计 11 页。

一、技术总结

无。

二、英语总结(生词：3)

1.lifespan

(1)lifespan: life + span("the period of time that sth exists or happens")

c. 也写作 life-span, the length of time for which a thing exists(寿命)。

(2)示例

One way to improve the lifespan and performance of NVM devices over time is to have the file system inform the device when files are deleted, so that the device can erase the blocks those files were stored on(《Operating System Concepts》第 462 页)。

2.spontaneously

(1)spontaneous: sponte("of one's own accord, willingly(自愿)")

adj. in a way that is natural, often sudden, and not planned or forced(自发的)。

(2)spontaneously

(3)示例

Error detection determines if a problem has occurred — for example a bit in DRAM spontaneously changed from a 0 to a 1, the contents of a network packet changed during transmission, or a block of data changed between when it was written and when it was read(《Operating System Concepts》第 462 页)。

3.chassis

(1)chassis: capsa("box, case")

c. the frame of sth。

(2)示例

To allow a system to gain access to more storage, either an individual storage device, a device in a chassis, or multiple drives in a chassis can be connected via USB FireWire or Thunderbolt ports and cables(《Operating System Concepts》第 470 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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