HP Compaq t1000 Supplementary Manual page 263

PAP
Parallel port
Parity check
PCMCIA
Ping
PPP
Protocol
Password Authentication Protocol. An authentication scheme
used by PPP servers to validate the identity of the originator of
the connection. PAP applies a two-way handshaking procedure.
After the link is established the originator sends an id-password
pair to the server. If authentication succeeds the server sends
back an acknowledgment; otherwise it either terminates the
connection or gives the originator another chance.
An input/output port that allows the entire bit pattern for a single
character to be sent at one time, usually used to connect a
printer to a computer.
The addition of non-information bits (specifically, parity bits) to
make up a transmission block (a number of bits transmitted as
unit) that ensures the total number of ones is always either even
(even parity) or odd (odd parity). The parity check is used to
detect transmission errors.
Personal Computer Miniature Connector Interface Adapter.
Hardware and software standards for credit-card-sized
integrated circuit cards.
Packet InterNet Groper. A protocol used in the Transmission
Control Protocol (TCP) environment to test whether a node or
remote device is communicating on a local area network (LAN)
or wide area network (WAN). The protocol provides for
transporting an echo response from a host system, a client, or a
gateway. It is a useful tool for locating problems on the network
related to failed connections and software problems. One
datagram is sent every second over the network and any
response is displayed.
Point-to-Point Protocol. A serial communication protocol that
operates over dialup or leased (dedicated) lines to provide
connections into IP networks. It sets up and monitors router
sessions and frames the data transmitted over the line.
A set of formal rules describing how to transmit data, especially
across a network. Low-level protocols define the electrical and
physical standards to be observed, bit- and byte-ordering, and
the transmission and error detection and correction of the bit
stream. High level protocols deal with the data formatting,
including the syntax of messages, the terminal to computer
dialogue, character sets, sequencing of messages, etc.
Glossary 233