And my most relevant software, of course, is to open every day operating systems(operating system)
1) The earliest operating system appeared in the 560 's, the second generation of computers, the era of transistor computers. The typical operating system is the FMS(FORTRAN Monitor system). "From the modern operating system"
because the general-purpose personal operating system is only a few Windows,Linux , and so on, there is not much room to choose. And the Windows operating system because of the graphical interface friendly, learning Office entertainment Convenient, so I can only choose it at first, and now because of the habit, I am very difficult to use other types of operating systems. The goal of Microsoft's Windows system development is of course to be profitable, but not just to earn users ' cash, but to create a platform to provide the basis for the profitability of its other ancillary products.
2) Windows Xplinux operating system. I did not understand anything at that time, only think linux windows windows xp
3) Windows series operating systems are charged, and the cost is not low. Development of windows Operating system is certainly by the Senior Software Development engineer as the main force, in the 15 year 4 month 22 , the Canadian Chinese network of News revealed that senior software Development Engineer's annual salary is 136592 USD, annual gross income 176459 United States dollar.
4) > I was just getting it. Windows Xp system, because the graphical interface is easy to understand, So I quickly became familiar with the basic operation. But there are a lot of features like hard disk partitioning, setting up updates, etc. I don't know, it was done by a computer salesman. After that, the system occasionally has some small problems, through the Internet to find solutions to the problem gradually familiar with the operation of the system. Human month is the measurement unit of workload, is the cumulative amount of work for all participants in the project, is the most convenient to calculate the cost of data. When the system appears bug 1 monthly, so an estimate of the update takes about 8 man month.
5) windows mac os The system promotes itself by restricting its own Tablet PC, Eventually took a place in the personal operating system, and the free open source chrome OS ubuntu windows The operating system, though now win10 > It's hot, but I'm still using . Span style= "FONT-FAMILY:CALIBRI;" >win7 linux Type of operating system is unfamiliar, suddenly change will have a lot of work difficult to unfold.
6) Now the hardware system is very perfect, in the next 5 years, it is very difficult to change too much, it is expected that only the CPU becomes more powerful, support more bits of addressing, more parallel operations. And none of this will change the nature of the operating system. Therefore, the operating system will only update, not disappear.
7) and hardware The biggest difference is that you do not need complex instructions, just follow the hint and click to complete the complex operation. So, we can conclude that the central task of software engineering is to control complexity.
I am a self-taught and cross-examination software graduate student, in my self-study process, the operating system in my heart has always been very high status, I originally self-taught programming goal is to write a more than Windows is more friendly than Linux belongs to their own operating system. Although we are moving forward now, we are increasingly discovering the distant goal. However, if not far enough, then what is the meaning of the pursuit (laughter). Here to encourage yourself and all the same as I have a distant goal is struggling with the students, we have stood on the shoulders of the father, just need to hurry up.
Blog Editor: Shi
Topic 2: Chatting with my most relevant software--operating system