The Collaborative International Dictionary of English v.0.48:

Joss \Joss\ (j[o^]s), n. [Chinese, corrupt. fr. Pg. deos God, L.
   deus.]
   A Chinese household divinity; a Chinese idol. "Critic in jars
   and josses." --Colman (1761).
   [1913 Webster]

   Joss house, a Chinese temple or house for the Chinese mode
      of worship.

   Joss stick, a reed covered with a paste made of the dust of
      odoriferous woods, or a cylinder made wholly of the paste;
      -- burned by the Chinese before an idol.
      [1913 Webster]

WordNet (r) 3.0 (2006):

joss
    n 1: a Chinese god worshipped in the form of an idol

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

JOSS
       JOHNNIAC Open Shop System (OS, JOHNNIAC)


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

JOSS
       Joint Object Services Submission


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

JOHNNIAC Open Shop System
JOSS

    (JOSS) An early, simple, interactive calculator
   language developed by Charles L. Baker at Rand in 1964.  There
   were two versions: JOSS I and JOSS II.

   [Connection with Johnniac?]

   ["JOSS Users' Reference Manual", R.L. Clark, Report F-1535/9,
   RAND Corp (Jan 1975)].

   [Sammet 1969, pp. 217-226].

   (2004-07-11)