HP NonStop G-Series - Manual (Page 192)

See also common applications environment (CAE) .
base profile. A minimum set of software components required to create a common applications environment.
block special file A device that is treated as a file for which all input or output must occur in blocks of data.
Traditionally, such files are disk or tape devices. Block special files provide access to a device
in a manner that hides the hardware characteristics of the device. Contrast with
character special
file.
blocked signal. A programmatic signal that is currently in the pending signal mask of a process and, when
generated, is not delivered to the process because of the signal mask setting. Some signals cannot
be blocked.
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. A continuous string of zero bits transmitted over an asynchronous serial communications line.
BSD Berkeley Software Distribution.
built-in command. In the OSS environment, a command that is implemented within the /bin/sh file. Some built-in
commands are also available as separately executable files.
CAE. See common applications environment (CAE) .
canonical input
mode. A terminal input mode in which data is not made available to a process until an entire logical
line (delimited by a newline, EOF, or EOL character) is entered. This mode is sometimes called
line mode or nontransparent mode. Contrast with
noncanonical input mode.
caught signal. A programmatic signal that is delivered to a process and for which the process has a
signal-handling function. When the signal is caught, the process is interrupted and the
signal-handling function executes.
character set. A finite set of characters (letters, digits, symbols, ideographs, or control functions) used for the
organization, representation, or control of data.
See also
code set. .
character special
file. A device that is treated as a file for which all input or output must occur in character bytes.
Traditionally, such files are interactive terminals, and the ISO/IEC IS 9945-1:1990 standard
defines only the access to such terminal files. See also
terminal . Contrast with block special file .
character. A sequence of one or more bytes representing a single character; used for the organization,
representation, or control of data. A single-byte character consists of eight bits that represent a
character. A multibyte character uses one or more bytes to represent a character. A wide character
is a fixed-width character wide enough to hold any coded character supported by an
implementation.
The ISO C standard defines the term multibyte character; a single-byte character is a special case
of multibyte character.
child process. A process created by another process. The creating process becomes the parent process of the
new process.
See also
parent process. .
client application An application that requests a service from a server application. Execution of remote procedure
calls is an example of a client application.
code set. Codes that map a unique numeric value to each character in a character set, using a designated
number of bits to represent each character. Single-byte code sets use 7 or 8 bits to represent
each character. The ASCII and ISO 646 code sets use 7 bits to represent each character in
Roman-based alphabets; these code sets are very limited and are not appropriate for international
use. The single-byte code sets in the ISO 8859 code sets use 8 bits to represent each character
and can therefore support Roman-based alphabets as well as many others including Greek,
Arabic, Hebrew, and Turkish. Multibyte code sets represent characters that require more than
one byte, such as East Asian ideographic characters.
common
applications
environment (CAE) A computer environment in which applications can be ported across all X/Open branded products
because of the use of international and industry standards. A CAE is an open system application
development environment, an open system execution environment, or a combination of the two.
192 Glossary