Linux kernel and OS
Linux kernel
The Core Subsystems of the Linux Kernel are as follows:
- The Process Scheduler
 - The Memory Management Unit (MMU)
 - The Virtual File System (VFS)
 - The Networking Unit
 - Inter-Process Communication Unit
 
kernel version
Linux内核版本号由3组数字组成:
第一个组数字:内核版本。 第二个组数字 …