SystemInformation[] gives detailed information about the Mathematica system being run. SystemInformation["comp"] gives a list of rules with information about the component " ...
WindowSize is a notebook option that specifies the size of window that should be used to display a notebook on the screen.
PrimeQCertificate[n] gives a certificate that n is prime or that n is composite.
List
(Mathematica Import/Export Format) Column of numbers or strings. Stores a list of numbers or strings as lines. Plain text format. Is essentially a single-column version of the "Table" format.
MathML
(Mathematica Import/Export Format) MIME type: text/mathml, application/mathml+xml MathML mathematical markup language. Used for integrating mathematical formulas in web documents. Rendering of embedded MathML ...
Typical stylesheets make Mathematica automatically organize notebook cells into convenient groups. You can override this behavior, or control it in any way, using menu items, ...
NEXUS
(Mathematica Import/Export Format) NEXUS phylogenetic file format. Commonly used for storage and exchange of phylogenetic data. Can store DNA and protein sequences, taxa distances, alignment scores, and ...
Bitmap converts the selected cells to a platform-independent bitmap format.
Copy As opens a submenu to copy a selection and convert it to the specified format.
Demonstration creates a new Demonstration notebook.