NonStop System Glossary

branch circuit
The circuit conductors located between the equipment receptacles and the final overcurrent device
in a power distribution panel (PDP) that protect the circuits.
branded product
A software product that is licensed by X/Open to carry the X/Open or UNIX trademark.
branding process
The activities that lead to the acceptance of a product by X/Open in accordance with its Trade
Mark Licence Agreement.
break condition
An event indicator or sequence of data from a terminal or terminal emulator that requests interruption
of an application program.
breakpoint
An object code location at which execution will be suspended so that you can interactively examine
and modify the process state. With symbolic debuggers, breakpoints are usually at source line or
statement boundaries.
In native object code for TNS/R or TNS/E, breakpoints can be at any MIPS RISC instruction or
Itanium instruction within a statement. In a TNS object file that has not been accelerated, breakpoints
can be at any TNS instruction location. In a TNS object file that has been accelerated, breakpoints
can be only at certain TNS instruction locations (see memory-exact point), not at arbitrary instructions.
Some source statement boundaries are not available. However, breakpoints can be placed at any
instruction in the accelerated code.
bridge rectifier
A full-wave rectifier with four elements, as in a bridge circuit. Alternating voltage is applied to one
pair of opposite junctions, and direct voltage is obtained from the other pair of junctions.
BSD
Berkeley Software Distribution.
built configuration
A configuration revision for which a system image and activation package have been created.
built-in command
In the Open System Services (OSS) environment, a command that is implemented within the
/bin/sh file. Some built-in commands are also available as separately executable files.
bundle
A 128-bit Very Long Instruction Word (VLIW) containing three Itanium instructions.
bypass mechanism
Equipment that permits switching from one power source to another. For example, a bypass
mechanism on an uninterruptible power supply (UPS) would switch to an alternative power source
(such as a standby power generator or commercial utility source) when maintenance must be
performed on the UPS.
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