About This Book

This book lists and briefly describes significant new and changed features of the Digital UNIX® Version 4.0 operating system. Digital has changed the name of its UNIX operating system from DEC OSF/1 to Digital UNIX. The new name reflects Digital's commitment to UNIX and its conformance to UNIX standards.

These descriptions are specific to this release; features listed here will not be listed in the next version of this book.

This book also lists features and interfaces that are scheduled to be retired in a future version of the system.

Note

This book does not contain a comprehensive list of all the features in Digital UNIX Version 4.0; nor does it list every change from previous versions of Digital UNIX. Refer to the Technical Overview for a comprehensive features list.

Audience

This book is for anyone who will use the Digital UNIX Version 4.0 software as a user, system administrator, or developer.

Organization

This book contains the following chapters:

Chapter 1	Describes new and changed features
Chapter 2	Lists features scheduled for retirement

Related Documents

You should have the following documentation available:

• The Technical Overview

• The Release Notes

• The manuals pertaining to particular features on which you want information

The printed version of the Digital UNIX documentation set is color coded to help specific audiences quickly find the books that meet their needs. (You can order the printed documentation from Digital.) This color coding is reinforced with the use of an icon on the spines of books. The following list describes this convention:

Audience	Icon	Color Code
General users	G	Blue
System and network administrators	S	Red
Programmers	P	Purple
Device driver writers	D	Orange
Reference page users	R	Green

Some books in the documentation set help meet the needs of several audiences. For example, the information in some system books is also used by programmers. Keep this in mind when searching for information on specific topics.

The Documentation Overview, Glossary, and Master Index provides information on all of the books in the Digital UNIX documentation set.

Reader's Comments

Digital welcomes any comments and suggestions you have on this and other Digital UNIX manuals.

You can send your comments in the following ways:

• Fax: 603-881-0120 Attn: UEG Publications, ZK03-3/Y32

• Internet electronic mail: readers_comment@zk3.dec.com

  A Reader's Comment form is located on your system in the following location:

  /usr/doc/readers_comment.txt
  

• Mail:

  Digital Equipment Corporation
  UEG Publications Manager
  ZK03-3/Y32
  110 Spit Brook Road
  Nashua, NH 03062-9987

  A Reader's Comment form is located in the back of each printed manual. The form is postage paid if you mail it in the United States.

Please include the following information along with your comments:

• The full title of the book and the order number. (The order number is printed on the title page of this book and on its back cover.)

• The section numbers and page numbers of the information on which you are commenting.

• The version of Digital UNIX that you are using.

• If known, the type of processor that is running the Digital UNIX software.

The Digital UNIX Publications group cannot respond to system problems or technical support inquiries. Please address technical questions to your local system vendor or to the appropriate Digital technical support office. Information provided with the software media explains how to send problem reports to Digital.