BSD in addition to Linux, and SVR4 name of the most important families in the Unix data set, and many of the network technologies that nowadays, to work, programs BSD. For example: BIND Sendmail in this category. In said other BSD is only an operating system but the software that of multi-culture university, such as open source, free software and safe rising. And, conversely, the Linux that to individual special belongs BSD to no one does not belong and belong to a group.In 1992, the text of the program, BSD , AT