[理工] [OS]-copy-on-write

[assassin88 (AI)]

題目是這樣的：

What is the copy-on-write feature and under what circumstances is it
beneficial to use the feature ? What is the herdware support requiresd to
implement this feature ?

想請問一下如果遇到這個題目應該怎麼寫比較好？雖然恐龍上面有 copy-on-write 章節
不過總是很難發揮，可否請指導一下較完整的說法，感謝。

另外想請問，什麼是 edge-triggered？  thx~

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