C-3
Gopher
An interface that has been used as the easiest interface before the WWW
service was developed. The gopher constructs a menu by classifying the
contents of information by topic or type, thereby allowing even people,
whom is not familiar with the Internet, to easily search information. In
addition, other functions of the Internet such as remote access, file transfer,
news, etc. can be performed in the gopher menu. A series of gopher
servers are interconnected so that a user can search for desired
information moving from one gopher server to another.
IP (Internet Protocol) Address
An address of a host or a device on the Internet. It is composed of 4 bytes.
Each byte is divided by a period. An IP address is assigned by IANA
(Internet Assigned Numbers Authority) to avoid duplication.
PPPoA (Point-to-Point Protocol)
The standard protocol for providing the serial interface between nodes, e.g.,
between a PC and a RAS or between routers, on the Internet. PPPoA
provides an Internet access rate, and is widely used substituting for a SLIP
(Serial Line Internet Protocol) which is a previously used serial interface
protocol. PPPoA is designed to transmit various network protocols
including IPX. PPPoA performs various and useful functions including
negotiation of a receiving maximum packet size over a serial line.
POTS (Plane Old Telephone Service) Micro filter
A POTS micro filter separate a voice signal from a data signals not to
influence an existing telephone service. By separating PSTN using a POTS
micro filter, network service such as Internet and telephone service can be
simultaneously used.
