The products are big and low in price, the main components such as mainframe and display products are big and low in price, the main components such as mainframe and display products are big and low in price, and the main components such as mainframe and display products are big and low in price. The main components, such as the mainframe, are relatively large and cheap; Main components, such as mainframe and monitor, are relatively large and cheap; Main components, such as mainframe and monitor, are relatively large and cheap; The main components such as mainframe and monitor are relatively large and cheap.