Why does Windows have the majority of users in the world? That's because it has the above three characteristics. If these three characteristics can be achieved, then DOS can also be like Windows. Moreover, DOS is free + secure + (beautification, which I added. Think about it, the computer is your tool, and you can make it a personalized computer). Then DOS must be better than Windows. FIRST, does one have to learn DOS very thoroughly to use it? 2. Do we need to distinguish DOS and Windows so clearly? (It seems that Windows was not built on the basis of DOS before? Now we still use DOS to partition and format, and then install Windows?) ~~~ 3. When learning DOS, Windows, Unix/Linux and other operating systems, aren't they all compiled with languages? Since it's a language, there is universality. 4. I think learning DOS is difficult, then DOS can only develop in the laboratory. (A good thing can only be accepted if it is easy to use.) 5. DOS must be like culture. (Personal opinion) Culture has acceptance and rejection. Good things are accepted, bad things are rejected. 6. For beginners, simple and convenient use of DOS is the real truth. (Designing a software to learn DOS under Windows, it seems that virtualization can be used. I don't know if it's possible.) 7. Those who use DOS at an advanced level can apply under DOS. (Also hope that there are DOS software supports.) 8. Regarding the DOS system, there are a few points I want to know why? (A) Why isn't Windows using a SHELL, AGL shell? (It seems so, just heard it.) (B) Hope that DOS can be a hierarchical system. This is what I want for the DOS system. I don't know if there is any mistake. If there is a mistake, there is no way. Think about it, how many people made Windows?