Origin of excerpt. From Middle English excerpted from Latin excerptus past participle of excerpere to pick out ex-ex-carpere to pluck; see kerp-in Indo-European roots.
What is Degaussing. Degaussing is simply the act of erasing data from magnetic media. Sometimes it is referred to as sanitization.. It works by subjecting magnetic media to a strong magnetic field that removes data from data bearing surfaces. The magnetic field can be created either by powerful magnets or an electromagnetic discharge.
The deduplication software keeps track of the list of pointers. If the file (or block or string of bytes .. it depends on the software being used) being deleted is the last pointer on the list, then typically that space is opened up for re-use.