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Glossary     69 
 
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PPPoE 
Acronym for “Point-to-Point Protocol over Ethernet.” A specification 
for connecting users on a network to the Internet by using a 
broadband connection (typically through a DSL modem).  
 
protocol 
A set of rules and conventions for sending information over a 
network. These rules govern the content, format, timing, sequencing, 
and error control of messages exchanged among network devices. 
For example, your computer connects to the Internet using the 
Transmission Control Protocol/Internet Protocol (TCP/IP). 
 
resource 
In reference to a “network resource,” a resource is any type of 
hardware (such as a modem or printer) or software (such as an 
application, file, or game) that users can share on a network.  
 
router 
See “base station.” 
 
server 
A computer or software program that mediates the connections 
between client computers or programs on a network. The server also 
responds to requests and provides shared resources, such as 
storage space or processing power, to clients on the network. 
 
sharing 
To make the files, folders, or printers that are on one computer (or 
connected to one computer) available to other computers on a 
network. 
 
SSID 
Acronym for “Service Set Identifier,” also known as a “wireless 
network name.” An SSID value uniquely identifies your wireless 
network and is case sensitive. 
 
static IP address 
A static Internet Protocol (IP) address is a unique identifier that is 
assigned permanently to a computer by a network administrator or 
an Internet service provider (ISP). IP addresses are required in order 
for computers to find one another and communicate over the 
Internet. Contrast with “dynamic IP address.” 
 
straight-through   See “Ethernet cable.”  
 
cable 
  
 
subnet 
A distinct network that forms part of a larger computer network. 
Subnets are connected through routers and can use a shared 
network address to connect to the Internet. 
 
subnet mask 
Similar in form to an Internet Protocol (IP) address, a subnet mask is 
provided by your Internet service provider (ISP) and used to 
configure a networked computer for proper communication with a 
network. An example of a subnet mask value is 255.255.0.0. 
 
switch 
Like a hub, a switch is a device that has multiple ports and that 
serves as a connection point for Ethernet cables on a network. But a 
switch only forwards data packets to the computer that has 
requested them. A router is a specialized kind of switch.  
 
TCP/IP 
Acronym for “Transmission Control Protocol/Internet Protocol.” A 
networking protocol that allows computers to communicate across 
interconnected networks and the Internet. Every computer on the 
Internet communicates by using TCP/IP.