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DISCUS™ DRG A225G 

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A Network is a collection of computers and other computer equipment that are 
connected for the purpose of exchanging information or sharing resources. 
Networks vary in size, some are within a single room, others span continents. 

A set of rules for communication between devices on a network. The rules dic-
tate format, timing, sequencing and error control. 

Point-to-Point Protocol over ATM. PPP over ATM is a protocol for connecting 
remote hosts to the Internet over an always-on connection by simulating a dial-
up connection. 

Point-to-Point Protocol over Ethernet. Point-to-Point Protocol is a method of 
data transmission originally created for dial-up connections; PPPoE is for 
Ethernet connections. 

A standard connector used to connect Ethernet networks. The “RJ” stands for 
“registered jack”. 

A device that acts as a central hub by connecting to each computer's network 
interface card and managing the data traffic between the local network and the 
Internet. 

A computer in a network that is shared by multiple end stations. Servers provide 
end stations with access to shared network services such as computer files and 
printer queues. 

Service Set Identifier. Some vendors of wireless products use SSID inter-
changeably with ESSID. 

A subnet mask, which may be a part of the TCP/IP information provided by your 
ISP, is a set of four numbers configured like an IP address. It is used to create 
IP address numbers used only within a particular network (as opposed to valid