Data storage devices including storage controller circuits to select data streams based on application tags and computing systems including the same

A data storage device comprising:

• a nonvolatile memory device including a plurality of memory blocks that are divided into a plurality of streams, wherein each of the plurality of streams includes at least one of the plurality of memory blocks;
• a stream mapping table that maps the plurality of streams to a plurality of application tags, wherein each of the application tags is mapped to one of the plurality of streams;
• and
• a storage controller that receives a write command and a data block, wherein the data block includes write data and an application tag appended to the write data, determines if the application tag appended to the write data is in the stream mapping table, selects, in response to determining that the application tag appended to the write data is in the stream mapping table, the one of the plurality of streams that is mapped to the application tag included in the data block, and writes the write data included in the data block into the selected one of the plurality of streams.