Symbol MC9000-G Product Reference Manual page 621

Input/Output Ports
IP
IP Address
IPX/SPX
Kerberos
Key
LAN
laser scanner
LASER
I/O ports are primarily dedicated to passing information
into or out of the mobile computer's memory. Series 9000
mobile computers include Serial and USB ports.
(Internet Protocol) The IP part of the TCP/IP communications
protocol. IP implements the network layer (layer 3) of the
protocol, which contains a network address and is used to
route a message to a different network or subnetwork. IP
accepts "packets" from the layer 4 transport protocol (TCP
or UDP), adds its own header to it and delivers a
"datagram" to the layer 2 data link protocol. It may also
break the packet into fragments to support the maximum
transmission unit (MTU) of the network.
(Internet Protocol address) The address of a computer
attached to an IP network. Every client and server station
must have a unique IP address. A 32-bit address used by a
computer on a IP network. Client workstations have either
a permanent address or one that is dynamically assigned to
them each session. IP addresses are written as four sets of
numbers separated by periods; for example, 204.171.64.2.
Internet Package Exchange/Sequential Packet Exchange. A
communications protocol for Novell. IPX is Novell's Layer 3
protocol, similar to XNS and IP, and used in NetWare
networks. SPX is Novell's version of the Xerox SPP protocol.
Kerberos is a network authentication protocol. It is
designed to provide strong authentication for client/server
applications by using secret-key cryptography. A free
implementation of this protocol is available from the
Massachusetts Institute of Technology. Kerberos is
available in many commercial products as well.
A key is the specific code used by the algorithm to encrypt
or decrypt the data. Also see, Encryption and Decrypting.
Local area network. A radio network that supports data
communication within a local area, such as within a
warehouse of building.
A type of bar code reader that uses a beam of laser light.
Light Amplification by Stimulated Emission of
Radiation.The laser is an intense light source. Light from a
laser is all the same frequency, unlike the output of an
incandescent bulb. Laser light is typically coherent and has
a high energy density.
GL-11
Glossary