check

check n.  A hardware-detected error condition, most commonly
   used to refer to actual hardware failures rather than
   software-induced traps.  E.g., a `parity check' is the result of
   a hardware-detected parity error.  Recorded here because the word
   often humorously extended to non-technical problems. For example,
   the term `child check' has been used to refer to the problems
   caused by a small child who is curious to know what happens when
   s/he presses all the cute buttons on a computer's console (of
   course, this particular problem could have been prevented with
   {molly-guard}s).