0909 simple knowledge of the operating system

This semester, we learned the operating system tutorial, my understanding of the operating system is:

1. What does the operating system do? Operating system is the core of software system, and it is the basic running platform of various software, it implements resource management mechanism and allows application to provide resource management strategy. In short, one of the functions of the operating system is to provide an abstract interface, and another function is to manage various software resources.

2, why should learn the operating system? Operating system is the core and soul of computer system, is an essential part of computer system, is also the most basic and core system software, so the operating system curriculum becomes a required subject of computer-related professional, is also a necessary professional knowledge for the application practitioners.

3, how to learn the operating system? First of all, how to get the operating system, what is the operating system, what the operating system to do, and then determine a good learning method with the goal, through the usual class of serious listening and after-class self-review and expand to learn this course.

4, understand the operating system history. 1956:gm-naa I/o,1969:unix,1981:xerox alto,1981:ms-dos,1983:apple Lisa operating system, 1983:ccdos,1984:macintosh system 1.0,1985:windows 1.0,1991:epoc16,1991:linux,1987:os/21993:windows Nt,1993:ucdos,1994:ms-dos 6.22,1994:windows 3.2,1995:windows 95,1997:mac os 8,1998:windows 98,2000:windows me,2001:mac os x,2001:windows xp,2007:singularity, 2009:windows 7. In short, the formation of the operating system can be divided into three large stages, a, manual operation stage, B, the implementation of the system stage, C, many to the program design.

0909 simple knowledge of the operating system