InputStringPacket[] is a MathLink packet that requests input in string form.
NotebookBrowseDirectory is a global option that determines the current working directory.
OutputNamePacket[string] is a MathLink packet that contains in string the name assigned to the next output.
PageFooterLines is an option for notebooks that specifies whether a horizontal line is inserted at the bottom of each page when the notebook is printed.
PageHeaderLines is an option for notebooks that specifies whether a horizontal line is inserted at the top of each page when the notebook is printed.
Positive[x] gives True if x is a positive number.
RawData
(Built-in Mathematica Symbol) RawData[data] is a low-level representation of the contents of a cell in which Show Cell Expression has been toggled.
ReturnPacket[expr] is a MathLink packet that contains the expression expr, the result of an EvaluatePacket evaluation.
RunScheduledTask[expr] schedules and starts a task that will repeatedly evaluate expr once per second.RunScheduledTask[expr, time] schedules and starts a task that will ...
SampleRate is an option for sound primitives that specifies the number of samples per second to generate for sounds.