A Discussion on Windows and Unix systems

Discussion on Windows and Unix systems

As we all know, Chinese universities teach computers and software based on Windows systems. Even when talking about the "operating system" as a key basic course, many schools use Windows NT as experimental materials. Here I am not trying to degrade the Windows system, but for the IT industry's brother, to understand the computer architecture from the Windows operating system with the highest ease of use, it is easy to misunderstand the concept. Once the foundation is not reliable, the future will often encounter bottlenecks. Here I will talk about some of my views through several examples:

 

The current UNIX system has the following versions,

Ü fully open-source Linux series (RedHat, centos, unbuntu, fedora)

Ü hp unix System

Ü ibm aix System

Ü sun solarisis

Ü Apple Mac OS

 

Gui and command line:

Programmers usually develop and deploy the entire project in the IDE. Taking the familiar Java language as an example, I am usually used to writing code, packaging and compiling in eclipse, then, use Apache ant to deploy the entire project. Development Using ide must be performed on the GUI. However, many programmers in foreign countries prefer the command line interface over gui. First, the GUI occupies a lot of hardware resources. In addition, they prefer to use many system kernel commands in the command line to conveniently debug the system.

 

The author thinks that, for programmers, it is essentially the result of Executing command calculations by writing code. I remember watching movies in the United States, hackers' hack attacks are all hitting a string of commands on black and white screens, and then reading the strings is also a character, even if you want to convert them into images, it is also formed by a series of 0101 binary strings in order. It can be seen that people's basic education begins with command line, and the so-called programmer is not so dependent on IDE.

 

Learn enterprise software:

Many people always install Oracle, WebLogic, tuxedo, and other software on Windows. In fact, since the design and development of those software have always been using UNIX-based systems, they must be running on UNIX to realize their characteristics. Taking oracle db and tuxedo for example, the IPC Mechanism is widely used. So-called IPC:

Interprocess Communication (IPC) refers to the coordination of activities among cooperating

Processes. A common example of this need is managing access to a given system resource

 

Because these software will adapt to the complex and scalable enterprise-level environment, it will certainly make sufficient preparations for inter-process communication and distributed computing. UNIX systems are designed and developed with many features taken into account. Therefore, the most suitable enterprise-level software is a UNIX-based operating system.

 

For example, when learning oracle on Windows, it is easy to ignore the kernel process structure of Oracle, because Oracle exists as a single process on Windows, and each component exists as a thread in the process, it is not easy to see during maintenance. On UNIX, each component exists as an independent process, and a ps command can be clearly viewed. In addition, the IPC efficiency on UNIX is much faster than that on Windows. Most features of windows are simulated or more complicated to use.

 

To sum up, Windows is a suitable system for individual families. However, UNIX is catching up in this aspect, and maxos is a very popular personal system. When it comes to enterprise-level applications, the system that servers choose will naturally give priority to UNIX-based systems.