| 摘要 |
A smartphone enables various applications to be installed and used, has various communication functions, and particularly can be connected with and used along with various devices via a USB. However, since a smartphone does not include all functions, there may be cases where it is necessary to connect and use a separate device, such as a barcode scanner. Accordingly, in order to use an external device, it is necessary to hold the external device and the smartphone together or a separate device fastening the external device to the smartphone is required because the smartphone does not include a device, such as a slot of a computer, into which the external device can be mounted. The present invention relates to a smartphone capable of mounting an external device. According to the present invention, an external device is not required to be separately carried and is attached and used to the smartphone without a separate connection device, thereby improving convenience in carrying and decreasing risk of being lost. |
