Indiana University
University Information Technology Services
What are archived documents?

Login is for authorized groups (e.g., UITS, OVPIT, and TCC) that need access to specialized Knowledge Base documents. Otherwise, simply use the Knowledge Base without logging in.


What are System V Unix and SVR4?

Unix was born at AT&T's Bell Laboratories in the late 1960s. Development continued largely in house until the middle 1970s with the release of Version 6. At this time, AT&T was prevented by statute from developing Unix commercially, but instead licensed the code to other organizations and corporations. In the mid-1980s, AT&T did enter the commercial market and the ultimate result of this effort was System V, a more or less direct descendent of Version 7.

Compared to the other major Unix flavor, BSD, System V was more conservative and focused on open standards. It was favored by commercial enterprises, which contrasted with BSD's strength in the academic arena. However, in 1987, AT&T worked with Sun Microsystems to produce System V, revision 4 (SVR4), which incorporated elements of BSD and SunOS into System V. Most commercial Unix implementations are based on the SVR4 model, and it has also influenced Linux.

AT&T ceased development of System V when it sold its Unix holdings to Novell in 1993. Novell delivered control of the UNIX name to X/Open (now the Open Group) and after briefly marketing it as UnixWare, sold the rest of its System V interests to SCO.

At Indiana University, for personal or departmental Linux or Unix systems support, see At IU, how do I get support for Linux or Unix?

This is document agjs in domain all.
Last modified on July 12, 2013.

I need help with a computing problem

  • Fill out this form to submit your issue to the UITS Support Center.
  • Please note that you must be affiliated with Indiana University to receive support.
  • All fields are required.

Please provide your IU email address. If you currently have a problem receiving email at your IU account, enter an alternate email address.

I have a comment for the Knowledge Base

  • Fill out this form to submit your comment to the IU Knowledge Base.
  • If you are affiliated with Indiana University and need help with a computing problem, please use the I need help with a computing problem section above, or contact your campus Support Center.