Storage device, computing device, and operating method of computing device

A storage device, a computing device, and an operating method of the computing device are provided. The computing device includes a storage device and a memory. The memory device includes a non-volatile memory and an internal buffer memory, and a memory controller that controls the non-volatile memory and the internal buffer memory and communicates with a bus. The memory includes a buffer memory and a memory controller that controls the buffer memory and communicates with the bus. The non-volatile memory stores user data and mapping data. In an initialization operation, the memory controller transmits the mapping data to the memory through the bus, and the memory controller stores the mapping data transferred from the memory device through the bus in the buffer memory. After the initialization operation, the memory controller transmits partial mapping data of the mapping data to the memory device through the bus, and the memory controller stores the partial mapping data transferred from the memory through the