protocol system
A system of standards and procedures that enables computers to communicate over a network.
TCP/IP
A network protocol suite used on the Internet and also on many other networks around the world.
ARPAnet
An experimental network that was the birthplace of TCP/IP.
router
A network device that forwards data by logical address and can also be used to segment large networks into smaller subnetworks.
physical address
A permanent address burned into a network adapter in the factory.
logical address
A network address configured through the protocol software.
gateway
A router that connects a LAN to a larger network. The term gateway sometimes applies specifically to a router that performs some kind of protocol conversion.
name service
A service that associates human-friendly alphanumeric names with network addresses.
IP address
A logical address used to locate a computer or other networked device (such as a printer) on a TCP/IP network.
domain name
An alphanumeric name associated with an IP address through TCP/IP's DNS name service system.
port
An internal address that provides an interface between an application and TCP/IP's Transport layer.
RFC (Request for Comment)
An official technical paper providing relevant information on TCP/IP or the Internet. You can find the RFCs at several places on the Internettry www.rfc-editor.org.
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