VerticalBar (Built-in Mathematica Symbol)

VerticalBar[x, y, ...] displays as x \[VerticalBar] y \[VerticalBar] ....

VerticalSeparator (Built-in Mathematica Symbol)

VerticalSeparator[x, y, ...] displays as x \[VerticalSeparator] y \[VerticalSeparator] ....

VerticalTilde (Built-in Mathematica Symbol)

VerticalTilde[x, y, ...] displays as x\[VerticalTilde]y\[VerticalTilde]....

WindowFrameElements (Built-in Mathematica Symbol)

WindowFrameElements is an option for notebooks that specifies the elements to include in the frame of the window used to display the notebook on the screen.

Yellow (Built-in Mathematica Symbol)

Yellow represents the color yellow in graphics or style specifications.

$Canceled (Built-in Mathematica Symbol)

$Canceled is a symbol returned when notebook input is canceled, for example from a dialog box.

$DefaultImagingDevice (Built-in Mathematica Symbol)

$DefaultImagingDevice gives the name of the default imaging device attached to the computer.

$ImagingDevices (Built-in Mathematica Symbol)

$ImagingDevices gives a list of available imaging devices.

$PathnameSeparator (Built-in Mathematica Symbol)

$PathnameSeparator is a string used as a separator when full file and directory names are constructed.

$RootDirectory (Built-in Mathematica Symbol)

$RootDirectory gives the root directory of your file system.