U disk and the difference between the card reader?
Memory card can not be used independently, he must be an external device can be used, the general parasitic, such as mobile phones, digital cameras in the memory card for data write, with a card reader memory card data read out to the computer (PC)
U disk and memory card is the difference between the large capacity U disk, the volume is also large, fast transmission, for direct transfer, storage of information.
Card reader is only a transmission medium, the card reader must be placed, such as memory card can be enough information from the computer (PC) stored in the memory card reader, the reader itself does not have storage function.
From the function is the USB = card reader + memory card
U disk can be directly on the computer (PC) on the East into the disk.
