OperatingSystem is an option for file and related operations that specifies the type of operating system to use to determine file name and other conventions.
PowerModList[a, s/r, m] gives a list of all x modulo m for which x^r \[Congruent] a^s mod m.
ScrollPosition is an option for Pane that specifies the scroll position of the contents of the pane.
Smaller
(Built-in Mathematica Symbol) Smaller is a style or option setting that specifies that objects should be smaller.
ValidationLength is an option to FindSequenceFunction and related functions that specifies the number of elements in the input sequence that should be used to validate a ...
WindowOpacity is a notebook option that determines the overall opacity of a displayed window.
$MachineAddresses gives a list of strings specifying the current IP addresses associated with the computer on which Mathematica is being run.
$MachineDomains is a list of strings giving the names of the current network domains associated with the computer on which Mathematica is being run.
LibraryFunctionLoad[lib, fun, argtype, rettype] loads Wolfram Library lib and makes the library function fun available in Mathematica.
AbortKernels[] aborts evaluations running in all parallel subkernels.