V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

HSC
       Hierarchical Storage Controller


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

HSC
       HTML Sucks Completely (HTML, Amiga)


The Free On-line Dictionary of Computing (30 December 2018):

High Speed Connect
HSC

    (HSC) A Hewlett-Packard bus like EISA.

   [HP9000 Configuration Guide, January 1996].

   [Details?]

   (1996-06-06)