Earning Points. Starwood's Preferred Guest program is fairly straightforward: the more nights you spend at participating hotels, the faster you'll earn a free night.
The mapper output (intermediate data) is stored on the Local file system (NOT HDFS) of each individual mapper nodes. This is typically a temporary directory location which can be setup in config by the hadoop administrator. The intermediate data is cleaned up after the Hadoop Job completes.
Microsoft's Sound Mapper (which sometimes appears in audio applications as 'MME-WDM Microsoft Sound Mapper' or simply 'Wave Mapper') often becomes the default driver for both audio playback and recording after you install a new audio application, and it may if you've recently installed a new audio interface.