A memory device is described, including a command decoder configured to receive a copy command to copy data stored in a first memory location to a second memory location without transmitting the data to an external controller, a memory array electrically connected to the command decoder and including a plurality of memory locations including the first memory location and the second memory location, a data line electrically connected to the memory array and configured to receive, from the first memory location, the data to be transmitted to the second memory location through the same data line, and an output buffer configured to store the data received from the first memory location through the data line to be written into the second memory location without transmitting the data to the external controller.