I disagree with the above view. Just because you run a "New DOS Era," you absolutely exaggerate the role of DOS. Can the development of DOS applications be faster than that of Windows applications? Aren't all software developed from DOS versions to Windows versions? Moreover, in the process of operating system development, DOS will gradually disappear naturally. It's just that Windows itself is not perfect, so it still can't do without DOS at the current stage, but the DOS of Win9x is completely different from the early DOS. We can't deny that DOS is small and flexible, but compared with the powerful Windows, it's far behind. I don't believe you all use DOS and DOS applications all day long.
Of course, DOS has its unique role now. The software under DOS is very convenient for editing small control programs and plays a great role in industrial control, so it is necessary to understand and master the DOS system, but it can't be said to be promoted and developed.