What's the difference between hand-drawing and actual drawing on the computer?

The advantage of computer drawing is that it is easy to modify, save and spread. The advantage of hand-drawing lies in the sense of material and handwork. Although there are computer devices such as handwriting boards and pens that are constantly improving to simulate the traditional hand-painted feel, it is simulation after all, and it is impossible to achieve the real traditional hand-painted feel. The feeling that the brush slides in contact with paper or cloth is beyond the computer's comprehension and realization. In terms of effect, the gap between the two is not obvious. Computer display color is based on the mixture of three primary colors, while hand-painted pigment is based on the mixture of three primary colors, which is essentially different.