Linux, Mac OS X, Dos, Unix, Windows 2000, Windows XP, Windows Vista,
In the common language, they use term " nada " to mean "nothing".
Nada is however the name of a program of a byte. What they can make with a byte you wonder? And definitely it is definitely the purpose of this program, it is strictly of use for nothing. The editor recommends to install it on your hard disk and to forget it.
For the most recalcitrant, Nada contains no virus, it is just a program which makes nothing, but that can make laugh you in your instants of stress at job.