The foundation is not strong, the ground shakes!

Beginners in learning operation and maintenance or development, should pay attention to the accumulation of basic knowledge, not just to learn practical knowledge, so that in the later period, it is easy to cause a partial understanding of “advanced knowledge points”, so that know, but do not know why.

Today I would like to share with you a “Basic Knowledge of Computer” written by The Linux joke writer Mr. Wang — Wang Xiaochun teacher, a total of 71 pages, PPT format, on the computer system, hardware composition, operating system, Linux related introduction, Linux philosophy, obtaining Linux, virtual machine and other knowledge points to do a more detailed explanation. Illustrated, easy to understand, even just contact operation and maintenance of the novice small white, can also easily read.

See the end of the article for the way of receiving!!

See the end of the article for the way of receiving!!

directory

  • Computer system
  • hardware
  • The operating system
  • Introduction to Linux
  • Linux philosophy
  • For Linux
  • The virtual machine

Computer system

The computer system consists of two parts: the Hardware system and the Software system.

hardware

Von Neumann architecture: In 1946, mathematician Von Neumann proposed that computer hardware consists of five parts: arithmetic unit, controller, memory, input device and output device.

The operating system

OS classification:

Server OS: RHEL, CentOS,Windows Server, AND AIX

Desktop OS: Windows 10,Windows 7,Mac OS, Fedora

Mobile OS: Android,IOS,YunOS

Introduction to Linux

The Linux kernel version consists of three parts

  • The major version number
  • Second version number
  • At the end of the version number
  • Package version number
  • Manufacturer’s version

Linux philosophy

  • Everything is a file (including hardware)
  • Small, single-purpose program
  • Linking programs to work together on complex tasks
  • Avoid confusing user interfaces
  • Configuration data is stored in text

The virtual machine

Virtual machine: Emulates hardware with software (such as vmware, VirtualBox, etc.).

[Click here to obtain web disk data and extract code]