Function-extended serial bus apparatus and electronic device having the same

摘要

An electronic device includes a main body having a first component which performs a first function, a function extending unit selectively combinable to the main body having a second electronic component which performs a second function, and a serial apparatus disposed in the main body to interface between the main body and an external device and between the main body and the function extending unit. The serial apparatus includes a first terminal unit to interface between the main body and the external device, and a second terminal unit to interface between the main body and the function extending unit. The main body of the electronic device can therefore be fabricated to include only the first component