《Operating System Concepts》阅读笔记:p13-p16

《Operating System Concepts》学习第 4 天,p13-p16 总结,总计 4 页。

一、技术总结

1.storage

指令只能在 memory 上执行,所以要执行程序,那么就要加载到内存上。

2.primary storage

primary storage 包含下面这些分类:

(1)register

(2)cache

(3)main memory

3.secondary storage

The most common secondary-storage devices are hard-disk drives (HDDs) and nonvolatile memory (NVM) devices, which provide storage for both programs and data.

(1)nonvolatile memory(如:NVM)

(2)HDDs(hard disk drives)

二、英语总结(生词:4)

1.tertiary

(1) tertiary: tert-("third")

adj. relating to a third level or stage.

示例:Tertiary storage(三级存储)——A type of storage that is slower and cheaper than main memory or secondary storage; frequently magnetic tape or optical disk(《Operating System Concepts》glossary G-36)。

2.disparity

(1)disparity: dis-("not") + par-("equal")

c/u. not equal or a difference(差距,差异)。

示例: Caches can be installed to improve performance where a large disparity in access time or transfer rate exists between two components(《Operating System Concepts》第 14 页)。

3.landscape

(1)landscape: land("land, soil(土壤), territory(领土)") + scape("-ship, shape, condition, state")

c. physical meaning: a large area of land, especially in relation to its appearance. Figurative meaning: The overall view, structure or environment of sth.

示例:On modern computers, from mobile devices to servers, multiprocessor systems now dominate the landscape of computing(《Operating System Concepts》第 16 页)。

上面这句话使用的就是 landscape 的比喻意义。

4.incur

(1)incur: in-("into") + curtere("to run")

vt. Incur literally means "to run into", implying sth(usually negative) is brought about or bring upone oneself.

示例1:When multiple processors cooperate on a task, a certain amount of overhead is incurred in keeping all the parts working correctly(《Operating System Concepts》第 16 页)。

示例2:"He incurred a fine for speeding." (He brought the fine upon himself by speeding)(他因超速而被罚款)。

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

时常思考,怎么才能把这些学的和当前工作联系起来,学有所用。从目前的情况看,如果是基础类的书籍,比较难做到,因为能用到的知识可能就那么一点。如果是应用类的书籍,相对而言比较容易。

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

欢迎搜索及关注:编程人(a_codists)

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