The product mainly adopts the modular design idea, and realizes the replaceable functional area design by changing the C side of the existing notebook product. The product mainly uses 5 types of user groups and usage scenarios to develop the design, redefine the product, and finally form five conceptual products, namely, business book, production book, game book, design book and visually impaired book. At the same time, the product also adopts cutting-edge technology and the best user experience solution in detail.