Macsense Connectivity XRouter Pro user manual Glossary, Cable Modem

Glossary

Glossary

Cable Modem

A device that connects your PC to a local TV line and receives data at 1.5Mpbs. One of its connections is connected to your PC and the other one is to the cable wall outlet. It attaches a standard 10BASE-T ethernet card to a computer and modulates between digital and analog signals.

DHCP

DHCP is a protocol for automatic IP configuration. Computers at client premise can get one IP address from DHCP server automatically. Using DHCP can save the effort for setting IP addresses on every LAN computer.

DMZ

Abbreviation for Demilitarized Zone. It is an area between a computer’s private network and its outside public network. DMZ prevents the external users from accessing directly to the server that contains company data.

Domain Name

A name that identifies one or more IP addresses. For example, the domain name "microsoft.com" represents many IP addresses. Domain names are used in URLs to identify particular Web pages. For example, in the URL http://www.pcwebope- dia.com/index.html, the domain name is pcwebopedia.com.

DSL

DSL stands for Digital Subscriber Line. DSL transfers high-bandwidth information and data to homes and small businesses through copper telephone lines. It is pre- dicted to replace IDSN in bringing both motion, 3-D, voice and data signals to the users.

Dynamic IP address

A dynamic IP address is an IP address that is given out automatically from a DHCP Server to client computers or routers on a LAN or WAN.

Firewall

A set of related programs that protects inforamtions of private network users from other networks.

Firmware

A program that is inserted into a programmable read-only memory to become a computing device. It is created and tested like a software.

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