COBOL Manual for TNS and TNS/R Programs

Glossary
HP COBOL Manual for TNS and TNS/R Programs—522555-006
Glossary-11
EXTEND mode
EXTEND mode. The state of a file after a process executes an OPEN statement including
an EXTEND phrase for the file and before the process executes a CLOSE statement
without the REAL or UNIT phrase for the file, allowing the process to extend the file by
appending additional records.
extended addressing. Data access through an extended (32-bit) pointer (also called 32-bit
addressing). Compare to standard addressing.
Extended-Storage Section. The section of the Data Division that describes data items that
the process stores in the segment of extended memory a program can address on an
HP system. (The items can be noncontiguous data items or records.)
extended storage. An additional segment of data storage available on NonStop systems.
external data. The data described in a program as external external data items and external
file connectors.
external data item. A data item that is described as part of an external record in one or
more programs of a run unit and that itself can be referenced from any program in
which it is described.
external data record. A logical record that is described in one or more programs of a run
unit and whose constituent data items can be referenced from any program in which
they are described.
external file connector. A file connector that is accessible to one or more object programs
in the run unit.
external reference. The call to a routine that is not present in the source file that a compiler
is translating.
external switch. A software device, defined and named by HP, that is used to indicate that
one of two alternate states exists.
Fast I-O. See HP COBOL Fast I-O
.
fault-tolerant facility. The software provided by HP and used by a process
to cause the
process to execute as a fault-tolerant process pair.
figurative constant. A compiler-generated value that you can reference by one or more
specific reserved words.
file. An object to which data can be written or from which data can be read. A file has
attributes such as access permissions and a file type. In the Open System Services
(OSS) environment, file types include regular file, character special file, block special
file, FIFO, and directory. In the Guardian environment, file types include disk files,
processes, and subdevices.