Abstract: Memory devices and systems with improved command/address bus utilization are disclosed herein. In one embodiment, a memory device comprises a plurality of external command/address terminals and a command decoder. The plurality of external command/address terminals are configured to receive a command as a corresponding plurality of command/address bits. A first set of the command/address bits indicate a read or write operation. A second set of the command/address bits indicate whether to execute a refresh operation. The memory device is configured to, in response to the first set of command/address bits, execute the read or write operation on a portion of a memory array. The memory device is further configured to, in response to the second set of command/address bits, execute the refresh operation to refresh at least one memory bank of the memory array when the second set of command/address bits indicate that the refresh operation should be executed.

Abstract: An event information processing method of processing event based information in an event information processing system for organizing and accessing event information includes steps of acquiring event based information from at least one information source, wherein event based information comprises attributes associated with topic, time, and location, and identifying topical, temporal, and location attributes from the event information that are used to organize the event information for selection and correlation with other event information. Topical, temporal, and location attributes are extendable by means of a topical hierarchical category resource, location and temporal hierarchical category resources or by application specific attribute information. The event information is storable in an event repository along with its topical, temporal, and location attributes.