MPE/iX, Multiprogramming Executive with Integrated POSIX, is the latest in a series of forward-compatible operating systems for the HP 3000 line of computers.
In HP documentation and in talking with HP 3000 users, you will
encounter references to MPE XL, the direct predecessor of MPE/iX.
MPE/iX is a superset of MPE XL. All programs written for MPE XL
will run without change under MPE/iX. You can continue to use MPE XL
system documentation, although it may not refer to features added to
the operating system to support POSIX (for example, hierarchical
directories).
Finally, you may encounter references to MPE V, which is the operating
system for HP 3000s, not based on PA-RISC architecture. MPE V
software can be run on the PA-RISC (Series 900) HP 3000s in what
is known as compatibility mode.
Organization of This Manual. This manual consists of four chapters, two appendixes, and an index as follows:
- Chapter 1
Introduction provides an overview of security on the system.
- Chapter 2
Accessing the System describes the process of selecting a password and logging on to the system.
- Chapter 3
Protecting Your Files with Access Control Definitions explains the use of ACDs.
- Chapter 4
Protecting Your Files with Capabilities, File Access Restrictions and Lockwords describes additional ways to protect your files.
- Appendix A
Error Messages contains a brief explaination of each error message.
