Abstract: Disclosed are a semiconductor memory system and a method for controlling same. The semiconductor memory system according to one embodiment of the present invention includes: a first memory for storing normal data and master metadata, the master metadata representing a relationship between a local address and a physical address for accessing the normal data; and a control logic generating compression metadata compressed in accordance with update metadata and storing the generated metadata in the first memory in response to a first control signal.

Abstract: A semiconductor chip and a semiconductor system comprising the chip. The semiconductor system comprises: a serial advanced technology attachment (SATA) host; a plurality of SATA devices which receive data from the SATA host and stores the received data, or transmit the stored data to the SATA host; and a semiconductor chip which controls a data-transceiving operation between the SATA host and the SATA devices. The semiconductor chip and the semiconductor system have merits in that the semiconductor chip may be connected to a plurality of devices without being limited by the number of host channels of the semiconductor chip, while preventing an increase in the size of a host.

Abstract: The present invention relates to a portable storage device communicating via a USB 3.0 protocol and a computer system having the same. The computer system according to one embodiment of the present invention comprises a portable storage device and a computer. The portable storage device includes an operating system (OS) storage region for storing OS data and boot data which are not sent to the computer through a transmission channel used for data transmission via the USB 3.0 protocol, requested by a receiving channel used for receiving data via the USB 3.0 protocol, and loaded on the computer to drive the computer.

Abstract: Disclosed are a semiconductor memory system having semiconductor memory devices of various types and a control method for the same. A semiconductor memory system according to an embodiment of the present invention comprises a plurality of semiconductor memory devices; and a memory controller for controlling the read-out of data programs for the plurality of semiconductor memory devices and data from the plurality of semiconductor memory devices, wherein at least two of the plurality of semiconductor memory devices differ from each other in terms of one or more of the following: the number of bits of data programmed in memory cells, the degree of integration, the manufacturer, whether they are synchronized, and whether or not encoded data is stored.