《Operating System Concepts》阅读笔记：p2-p8

《Operating System Concepts》学习第 2 天，p2-p8 总结，总计 7 页。

一、技术总结

1.operating system

An operating system is software that manages a computer’s hardware。

2.system bus

data bus, address bus, control bus 统称为 system bus。

二、英语总结(生词：5)

1.myriad

(1)myriad: myrias(“ten thousand”)

Originally, myriad refered to the number ten thousand(10,000), but over time, it came to mean a very larege or countless number of sth.

示例：By now, you can probably see that the term operating system covers many roles and functions. That is the case, at least in part, because of the myriad designs and uses of computers(《Operating System Concepts》第5页)。

2.spacecraft

(1)space

c/u. an empty area(空间), an empty area outside Earth’s atmosphere(宇宙，太空).

(2)craft

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