Different perspectives on an operating system

Article Title: different perspectives on an operating system. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

I have read Williams Stallings's "operating system: Essence and design principles", a classic operating system textbook, and learned a lot about the operating system algorithms and principles, I even went through The Design of Unix Operating System and saw The Design and implementation of many Unix System calls, however, we are confused about how to build an operating system from scratch.

Thoughts:

Maybe the research on the operating system should be viewed from many perspectives (the design and implementation of the operating system ).

1. the operating system's working principle and some algorithms and ideas used.

2. it is the operating system image. for example, we have compiled a Linux kernel and finally generated a kernel image. What structure does this image file have? In this regard, we should better read the makefile file used during Linux Kernel Compilation.

3. What is the operating system like. The operating system is actually running as part of the virtual address space of each process. for linux, it is the high part of the virtual address space. It provides a set of system functions for a process to access computer resources. For this part, you should have a good understanding of linux system calls.