A portable terminal includes a main body having a first surface and a second surface, and a first camera. The main body is divided into nine divisional matrix regions. The second surface is attachable to a barcode reader module. The barcode reader module has a second camera for reading a barcode. When the barcode reader module is attached to the second surface, the second camera is readable the barcode in a state that the second surface is directed to the barcode and the second camera is located in the second region of the second surface.