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Glossary-6
Glossary
data for a program. The standard input
file is often called stdin, and is automati-
cally opened by the shell for reading on
file descriptor 0 for every command in-
voked.
standard output The destination of
output data from a program. Standard
output appears on the display unless it is
redirected otherwise.
su Super User. See root user.
system board The printed-circuit
board of a workstation where the CPU
and memory RAM reside.
system name The eight-character (or
less) string which uniquely identifies a
system. Usually identical with the sys-
tem’s host name found in /etc/hosts. The
Internet Protocol (IP) number is some-
times used instead of a system name to
identify the system.
tree structure The HP-UX method of
organizing files and directories into a
branching hierarchical structure. This
structure looks like an inverted tree with
the “root” directory at the top, descend-
ing into multiple directory/file branches
that end in clusters of files.
user Any person who interacts directly
with a computer system.
user interface The medium through
which users communicate with their
workstations. The command-line prompt
is one type of interface. The graphical
objects of HP VUE are another type of
interface.
working directory This is the directo-
ry in which relative path name searches
begin. It is also called the current direc-
tory, or the current working directory,
identified by invoking the command
pwd.
workstation A compact, graphics-ori-
ented computer, generally high-speed
and high-capacity, designed for use in a
variety of tasks requiring high perfor-
mance.