NetIPC 3000/XL Programmer's Reference Manual (5958-8600)

Table Of Contents
244
PAD profile Terminal or printer
profile that specifies the
configuration characteristics for
PAD-connected devices.
PDN Public data network. A data
communication network whose
services are available to any user
willing to pay for them. Most
PDNs use packet switching
techniques.
port An outlet through which a
device can be connected to a
computer, consisting of a physical
connection point and controlling
hardware, controlling software,
and configurable port
characteristics. Ports can be
thought of as data paths through
which a device communicates
with the computer.
Precision Architecture The
hardware design structure for the
HP 3000 Series 900 computer
family.
privileged mode A capability
assigned to accounts, groups, or
users allowing unrestricted
memory access, access to
privileged CPU instructions, and
the ability to call privileged
procedures.
probe protocol An HP protocol
used by NS 3000/XL IEEE 802.3
networks to obtain information
about other nodes on the network.
probe proxy server A node on
an IEEE 802.3 network that
possesses a network directory. A
probe proxy server can provide a
node with information about
other nodes on the same or other
networks of an internetwork.
profile A method of grouping
device connection specifications
and characteristics so that the set
of characteristics can be easily
associated with groups of like
devices. See also printer profile,
terminal profile.
programmatic device A device
operating under control of a
program running on a computer.
Programmatic devices can be
used for input, output, or both,
depending on the device and how
it is opened by the controlling
program.
protocol A set of rules that
enables two or more data
processing entities to exchange
information. In networks,
protocols are the rules and
conventions that govern each
layer of network architecture.
They define what functions are to
be performed and how messages
are to be exchanged.
PSN Packet-Switching Network.
Any datacommunication network
using packet-switching
techniques wherein data is
disassembled into packets at a
source interface and reassembled
into a data stream at a
destination interface. A public
PSN offers the service to any
paying customer.