TNSVU User's Guide

Glossary
TNSVU User’s Guide—528143-003
Glossary-16
OCA-generated Itanium instructions
An OCA-accelerated object file contains the original TNS object code, the OCA-
accelerated object code and related address map tables, and any Binder and symbol
information from the original TNS object file. An OCA-accelerated object file also can
be augmented by the Accelerator with equivalent MIPS RISC instructions.
OCA-generated Itanium instructions. See Intel® Itanium® instructions.
OCI. See TNS Object Code Interpreter (OCI).
object code library. Synonym for library.
object code file. A file containing compiled machine instructions for one or more routines.
This file can be an executable loadfile for a program or library or a not-yet-executable
linkfile for some program module. On other systems, an object code file is also known
as a binary or as an executable.
open system. A system with interfaces that conform to international computing standards
and therefore appear the same regardless of the system’s manufacturer. For example,
the Open System Services (OSS) environment on HP NonStop™ systems conforms to
international standards such as ISO/IEC IS 9945-1:1990 (ANSI/IEEE Std. 1003.1-
1990, also known as POSIX.1), national standards such as FIPS 151-2, and portions
of industry specifications such as the X/Open Portability Guide Version 4 (XPG4).
Open System Services (OSS). An open system environment available for interactive or
programmatic use with the HP NonStop™ operating system. Processes that run in the
OSS environment usually use the OSS application program interface. Interactive users
of the OSS environment usually use the OSS shell for their command interpreter.
Synonymous with Open System Services (OSS) environment. Contrast with Guardian.
Open System Services (OSS) signal. A signal model defined in the POSIX.1 specification
and available to processes in the OSS environment. OSS signals can be sent between
processes.
Open System Services (OSS) environment. The HP NonStop™ Open System Services
(OSS) application program interface (API), tools, and utilities.
Open System Services (OSS) Monitor. A Guardian utility that accepts commands affecting
OSS objects through an interactive Guardian interface named the Subsystem Control
Facility (SCF).
Open System Services (OSS) signal. A signal model defined in the POSIX.1 specification
and available to TNS processes and TNS/R native processes in the OSS environment.
OSS signals can be sent between processes.
Open Systems Interconnection (OSI). A seven-layer network architecture model defined
by the International Organization for Standardization (ISO). The two lowest layers deal
with the physical connections and their protocols. The five upper layers deal with
network services, such as network file transfers and access to remote databases.