"I want to ask why there are many manufacturers of mobile phone CPUs, but only two companies, Inter and AMD, do computer CPUs?"
The progress of domestic PC-side CPU production has so far disappointed many netizens who are looking forward to it, but the development speed of mobile phone CPUs has made people wonder why there are so many mobile CPU manufacturers in China, but only those two computers. What about the three companies? Today, with the help of this netizen's question, the editor will briefly explain this question for everyone.
Why only two companies, Inter and AMD, do computer CPUs? Before we start, we need to correct this netizen's expression, not inter but Intel.
This problem is actually related to the architecture patents on the PC side. The CPU on the PC side is based on the x86 architecture. x86 is the instruction set of the desktop CPU. The x86 architecture patents on the PC side are only owned by Intel, AMD, and via. , And only these three companies can make CPUs. Unless there is a better system than Windows that does not only support the x86 instruction set, other companies can only look to patents and sigh.
The other reason is ecological reasons. In the case of x86 being monopolized, it is completely impossible to create a new CPU through another architecture. First, you need to redesign the operating system and persuade various software vendors to produce the corresponding software, otherwise your CPU will be useless if the system does not support it, and there is no software developer to develop software with you, and users lack rich software when using it. Support, the ecological environment will get worse and worse.
As for the combination of the domestic "Loongson" CPU and "Kirin" operating system, the main purpose is actually military use, for the information security of the state secrets department, and the "Loongson" is also made under the authorization of MIPS, strictly In terms of it, it is not really independent research and development. After all, the core is also bought, just like the engine of a car, and there is a state backing and spending money.
Why are the CPUs of mobile phones made by domestic manufacturers?
In fact, the CPU of mobile phones is not independently developed in China. The main reason why some domestic manufacturers of mobile phone CPUs do it is that ARM has opened an open authorization. The fundamental reason why ARM will authorize is also to fight against X86. In fact, it can be summarized in a simple sentence. ARM sells its own designs to these mobile phone CPU manufacturers. After the manufacturers get the drawings, they can install several CPUs together according to the drawings, and then they can claim that it is a new chip designed. , But the real core architecture design is someone else’s technology.
The second is the support of mobile phone operating systems. Unlike computer operating systems, excellent operating systems on the PC side are not compatible with the new CPUs, but excellent systems on the mobile phone side are compatible with these CPUs. This is why the CPU of the mobile phone can Independent production without considering the operating system.
In fact, in summary, because of compatibility and authorization issues, the CPU of the mobile phone does not need to consider the most important issue of the operating system to design and produce as much as possible, but the core technology is someone else's. The reason why the computer's CPU can't develop is because of patent reasons, and the most important thing is that there is no good operating system support, which causes the computer's CPU to become a good CPU no matter how good it is.
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