What is the difference between a 2-in-1 tablet and a normal tablet?

The 2-in-1 PC tablet, as the name suggests: it has PC-level computing and application functions, as well as the portability and entertainment functions of a tablet. There was no such product before 2012, because the processor at that time had low performance and high power consumption, and high-performance PCs could not be made into tablets. At the same time, PC-level operating systems were not suitable for touch. In the fourth quarter of 2012, when Microsoft's win8+intel Core 3 processors appeared at the same time, it made the PC tablet two-in-one possible. One feature of these products is that the keyboard and the tablet can be separated. The laptop is used in combination and the tablet is used in disassembly. The notebook cannot be disassembled and does not support touch, let alone use it as a tablet.