The Collaborative International Dictionary of English v.0.48:

Hyperion \Hy*pe"ri*on\, n. [L., fr. Gr. ?.] (Class Myth.)
   The god of the sun; in the later mythology identified with
   Apollo, and distinguished for his beauty.
   [1913 Webster]

         So excellent a king; that was, to this,
         Hyperion to a satyr.                     --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Hyperion
    n 1: (Greek mythology) a Titan who was the son of Gaea and
         Uranus and the father of Helios and Selene and Eos in
         ancient mythology

The Free On-line Dictionary of Computing (19 January 2023):

Hyperion

    An MS-DOS personal computer that was
   manufactured in Kanata (near Ottawa, Ontario, Canada) in the
   mid-1980s.  It received considerable government subsidies and,
   while it was considered well-designed and manufactured and a
   real threat to the Compaq Portable, the Ottawa firm that
   designed it was unable to beat Compaq.

   (1997-07-21)