Shared Flashcard Set

Details

CIMS370
Chapter 6
24
Computer Science
Undergraduate 3
10/07/2007

Additional Computer Science Flashcards

 


 

Cards

Term
network interface card (NIC)
Definition
each computer on the network has one of these
Term
network operating system (NOS)
Definition
routes and manages communications on the network and coordinates network resrouces
Term
hubs
Definition
very simple devices that connect network components, sending a packet of data to all other connected devices
Term
switch
Definition
more intelligence than a hub and can filter and forward data to a specified destination
Term
router
Definition
special communications processor used to route packets of data through different networks
Term
twisted wire
Definition
consists of strands of copper wire twisted in pairs and is an older type of transmission medium
Term
backbone
Definition
part of a network that handles the major traffic
Term
optical networks
Definition
can transmit all types of traffic-voice,data,video over fiber cables
Term
dense wavelength division multiplexing
Definition
enables a single communications channel to carry simultaneously data transmissions from multiple sources
Term
hertz
Definition
the number of cycles per second that can be sent through that medium
Term
topology
Definition
major LAN topologies:star,bus, and ring
Term
star network
Definition
all network components connect to a single hub
Term
bus networks
Definition
most common Ethernet topology
Term
ring networks
Definition
used primarily in older LANS,closed loop goes in one way
Term
internetworking
Definition
linking of separate networks each of which retains its own identity into an interconnected network
Term
internet service provider (ISP)
Definition
commercial organization with a permanent connection to the internet that sells a temporary connections to retail subscribers
Term
information appliance
Definition
device such as an internet-enabled cell phone or a tv internet receiver
Term
FTP file transfer protocol
Definition
e-mail, chatting and instant messaging
Term
hypertext transfer protocol HTTP
Definition
communications standard used to ransfer pages on the web
Term
RSS
Definition
pull content from the web site that can be viewed later on the computer
Term
extranets
Definition
private intranets that can be viewed by authorized outsiders
Term
LISTSERV
Definition
enables discussions to be conducted through predefined groups but uses e-mail mailing list servers instead of bulletin boards for communications
Term
groupware
Definition
provides capabilities for supporting enterprise-wide communication and collaborative work
Term
virtual private network VPN
Definition
secure, private network that has been configured within a public network to take advantage of the economies of scale and management facilities of large networks such as the internet
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