1. Anything that requires heavy wizardry or black art to parse: core dumps, JCL commands, APL or code in a language you haven' t a clue how to read. Not quite as bad as line noise, but close. Compare casting the runes, Great Runes. 2. Special display characters (for example, the high-half graphics on an IBM PC). [Jargon File]

In addition suitable contents:
[ 2 ] [ = ] [ ad ] [ ag ] [ al ] [ am ] [ an ] [ APL ] [ ar ] [ arc ] [ arg ] [ as ] [ at ] [ av ] [ B ] [ b ] [ ba ] [ black art ] [ C ] [ ca ] [ cast ] [ casting the runes ] [ ch ] [ char ] [ character ] [ ci ] [ ck ] [ CL ] [ cl ] [ co ] [ code ] [ com ] [ comma ] [ command ] [ core ] [ core dump ] [ de ] [ display ] [ du ] [ dump ] [ ec ] [ er ] [ es ] [ fi ] [ file ] [ fo ] [ for ] [ G ] [ ge ] [ gh ] [ gr ] [ graph ] [ Great Runes ] [ gu ] [ h ] [ hat ] [ heavy wizardry ] [ hing ] [ hr ] [ IBM ] [ id ] [ il ] [ in ] [ ir ] [ is ] [ it ] [ J ] [ Jargon File ] [ JCL ] [ la ] [ language ] [ Lex ] [ li ] [ line ] [ line noise ] [ lose ] [ lu ] [ M ] [ ma ] [ man ] [ mm ] [ mo ] [ mod ] [ module ] [ mp ] [ N ] [ na ] [ ne ] [ ng ] [ no ] [ noise ] [ om ] [ pa ] [ PC ] [ pe ] [ ph ] [ pl ] [ query ] [ rc ] [ re ] [ ru ] [ run ] [ S ] [ se ] [ Spec ] [ st ] [ th ] [ to ] [ ua ] [ um ] [ ve ] [ wizard ] [ yt ] [ za ]