Computer Operating System learning notes _ 1 _ Operating System Overview

Computer Operating System learning notes _ 1 _ Operating System Overview

Operating System Overview

I. Concepts, features, functions, and services provided by the operating system

1. Operating System Concept

Ii. Development and classification of Operating Systems

1. Development of Operating Systems

Iii. Operating System Environment

1. kernel state and user State [the operating system did not strictly distinguish the kernel state from the user State at the beginning, but was proposed with concurrency]

Iv. Operating System Architecture

Common operating system architectures include the integral structure, hierarchical structure, and microkernel (customer/Server) structure.