Dvips converts .dvi files produced by the TeX text formatting system
(or by another processor like GFtoDVI) to PostScript(TM) format.
Normally the PostScript file is sent directly to your printer.
If you are installing tetex, so that you can use the TeX text
formatting system without direct PDF compilation, consider to install
tetex-dvips. In addition, you will need to install tetex-afm (for converting
PostScript font description files), tetex-latex (a higher level formatting
package which provides an easier-to-use interface for TeX), and tetex-xdvi
(for previewing .dvi files in X). If you are installing TeX and you are
not an expert at it, you should also install the tetex-doc package, which
contains documentation for the TeX system.