《Operating System Concepts》學(xué)習(xí)第 35 天，p449-p459 總結(jié)，總計 11 頁。

一、技術(shù)總結(jié)

1.NVM & SSD

Flash-memory-based NVM is frequently used in a disk-drive-like container, in which case it is called a solid-state disk (SSD) (Figure 11.3)。

2.HDD Scheduling

(1)FCFS Scheduling

(2)SCAN Scheduling

(3)C-SCAN Scheduling

二、英語總結(jié)(生詞：2)

1.platter

(1)platter: plate("metal plate")

c. large, shallow dish for holding food(大淺盤)。

(2)示例

Conceptually, HDDs are relatively simple (Figure 11.1). Each disk platter has a flat circular shape, like a CD(《Operating System Concepts》第 450 頁)。

2.entail

(1)entail: en-("to make") + taile("legal limitation")

vt. involve sth as a necessary part(使必要，牽涉)。

(2)示例

For HDDs, meeting this responsibility entails minimizing access time and maximizing data transfer bandwidth(《Operating System Concepts》第 457 頁)。

關(guān)于英語的注解同步更新匯總到 https://github.com/codists/English-In-CS-Books 倉庫。

三、其它

今天沒有什么想說的。

四、參考資料

1. 編程

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

2. 英語

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

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

歡迎搜索及關(guān)注：編程人(a_codists)