电信专业英英词典N-2（在线收听）

　　NOC

　　network operations center

　　NOS

　　network operating system

　　NPA

　　numbering plan area

　　NSEP

　　National Security & Emergency Preparedness

　　NTSC

　　National Television System Committee

　　NT

　　network termination

　　NAP - See Network Access Point

　　Navigate - To move through various documents on the WWW using a browser.

　　Network - The total infrastructure for transmitting phone and/or Internet messages.

　　Network Access Point (NAP) - A centralized point where Internet traffic is exchanged or shared.

　　Network Operation Center (NOC) - A round-the-clock operation where Network engineers monitor and troubleshoot technical equipment and connections.

　　Newsgroup - A discussion group in which you can leave messages for others to read on UseNet.

　　NID - Network Interface Device - A device used within a local area network, which allows a number of independent devices (computers, modems, etc.) to communicate with one another. Also, a device usually mounted on the outside of the customer's home that connects the customer's inside wiring to the telephone company's wiring and protects the customer's phone equipment from lightning and any large rise or fall in electricity.

　　NOC - See Network Operation Center