NonStop System Glossary

User Code (UC)
See TNS code space.
user database
A database within a NonStop node that contains the user name, user ID, group ID, initial working
directory, and initial user program for each user of the node.
user ID
The unique identification of a user within a node.
In the Guardian environment, the term user ID usually means the structured view of the HP NonStop
operating system user ID. In the Open System Services (OSS) environment, the term user ID usually
means the scalar view of the NonStop operating system user ID—a number called the UID.
user library
1. An object code file that the operating system links to a program file at run time. A program
can have only one user library. See also TNS user library, TNS/R native user library, and TNS/E
native user library.
2. A library loadfile associated with a program so that it emulates the user library feature of the
operating system on TNS systems. For position-independent code programs on TNS/R and TNS/E
systems, the user library is a dynamic-link library. It is treated as if it were the first library in the
program's libList; thus it is searched first for symbols required by the program. However, a user
library does not appear in the program's libList; instead, its name is recorded internally in the
program's loadfile. A program can be associated with at most one user library; the association
can be specified using the linker at link time or in a later change command, or at run time using
the process creation interfaces. (The /LIB …/ option to the RUN command in TACL uses these
interfaces.)
User Library (UL)
See TNS code space.
user name
A string that uniquely identifies a user within the user database for a node.
UTC
See Coordinated Universal Time (UTC).
UTP
See unshielded twisted pair (UTP).
V
V AC
Volts of alternating current.
V.35
The International Telecommunications Union, Telecommunication Standardization Sector (ITU-T)
standard for data transmission at 48 kilobits/second over 60 - 108 kilohertz group band circuits.
It contains the 34-pin V.34 connector specifications normally implemented on a modular RJ-45
connector. V.35 is the equivalent of Electronics Industry Association (EIA) RS-422/RS-449.
V 201