《Operating System Concepts》阅读笔记：p62-p75

《Operating System Concepts》学习第 10 天，p62-p75 总结，总计 14 页。

一、技术总结

1.  system call

(1)  定义

The primary interface between processes and the operating system, providing a means to invoke services made available by the operating system.

(2)  类型

System calls can be grouped roughly into six major categories: process control, file management, device management, information maintenance, communications, and protection。

2.  interprocess communication

(1)  分类

There are two common models of interprocess communication: the message-

passing model and the shared-memory model.

二、英语总结(生词：3)

1.rewind

(1)rewind: re-(“again”) + wind(“to turn, to twist”)
vi/vt. go back to the beginning, move back to the start.
示例：W