| A | B |
|---|
| Internet | The golbal network of computers constantly connected to each other using standardized communications protocol |
| Intranet | Local networks of computers using TCP/IP as the standard communications protocol |
| Packet | A collection of info. Often used to refer to the chunks od info sent over omputer networks |
| ISP | Internet service provider. An ISP provides Internet access to people or corporations |
| ISDN | This is a digital line that is often used to connect to the internet |
| IP Address | (Internet Protocol address) The address of a computer attached to a TCP/IP network. |
| PPP | Point-to-Point Protocol) The communications protocol used to dial up the Internet over a serial link |
| Extranet | A Web site for customers rather than the general public. |
| SMTP | (Simple Mail Transfer Protocol) The standard e-mail protocol on the Internet. |
| HTTP | (HyperText Transport Protocol) The communications protocol used to connect to servers on the World Wide Web. |
| HTML | (HyperText Markup Language) The document format used on the World Wide Web. |
| Protocol | Rules governing transmitting and receiving of data |
| Router | A device that forwards data packets from one local area network (LAN) or wide area network (WAN) to another |
| Proxy Server | Also called a "proxy" or "application level gateway," it is an application that breaks the connection between sender and receiver. |
| PING Command | Packet INternet Groper) An Internet utility used to determine whether a particular IP address is online. |
| LAN | (Local Area Network) A communications network that serves users within a confined geographical area. |
| WAN | (Wide Area Network) A communications network that covers a wide geographic area, such as state or country |
| MAN | (Metropolitan Area Network) A communications network that covers a geographic area such as a city or suburb |
| Peer to Peer network | A communications network that allows all desktop and laptop computers in the network to act as servers and share their files with all other users on the network |
| Client Server network | A communications network that uses dedicated servers. In this context, the term is used to contrast it with a peer-to-peer network, which allows any client to also be a server. |
| Star topology | A communications network in which all terminals are connected to a central computer, controller or hub. PBXs and telephone systems are prime examples as well as Token Ring and 10BaseT Ethernet. |
| Bus topology | A network topology that uses a common pathway between all devices. |
| Ring topology | A communications network that connects terminals and computers in a continuous loop. |
| Mesh topology | A net-like communications network in which there are at least two pathways to each node. Since the term network means net-like as well as communications network, the term mesh is used to avoid saying "network communications network." |
| Hybrid topology | In communications, a network made up of equipment from multiple vendors. |
| OSI model | A model that consists of seven layers |
| 10 base5 | The original IEEE 10 Mbps Ethernet standard which uses a thick coaxial cable. |
| 10base2 | An earlier 10 Mbps Ethernet standard that uses a thin coaxial cable. |
| 10 baseT | A 10 Mbps Ethernet standard that uses twisted wire pairs (telephone wire). |
| CSMA/CD | (Carrier Sense Multiple Access/Collision Detection) The LAN access method used in Ethernet. |
