摘要:
A storage device of a storage system includes a device Direct Memory Access (DMA) configured to calculate a data transfer amount based on size information of data provided to a DMA queue; a command manager configured to receive the data transfer amount from the device DMA and to calculate a transfer speed using a speed mode table; and a device interface configured to transfer the transfer speed to a host.
摘要:
A multipurpose learning device having a picture book including a plurality of pages, wherein the pages turned in a top-to-bottom hinged direction instead of a side-to-side hinged direction, a memory unit having audio and video data stored therein, the memory unit being detachably connected to a touch board. A surface of the touch board is declined to a predetermined angle for enabling a user to easily position an electronic pen perpendicular to the touch board. Each sheet of the picture book includes a blank page and a picture page and picture information corresponding to a picture on one of the pages is displayed on a host device, such as a television. A user moves the electronic pen over a blank page which is positioned over the touch board, and a cursor is displayed on the host device at a position corresponding to the position of the electronic pen over the blank page and touch board.