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15 Cards in this Set

  • Front
  • Back
Computer network
A group of two or more computer systems linked together using wires or radio waves over a geographical area
Computer networks that do not use physical wires
Benefits of a network
the ability to communicate and the ability to share
software that supports team interaction and dynamcis including calendaring, scheduling, and videoconferencing
Benefits of computer networking
ot cam stpre virtually any kind of information at, and retrieveit from, acentral location on the network as well as access it from any connected computer.
Actual physical organization of the computers including connections
indicates how much information can be carried in a given time period over a wired or wireless communications link
connects network devices over a relatively short distance, such as a building or a campus
geographically dispersed telecommunications network, such as the Internet

interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network
MAN is smaller than WAN
Physical Topology
actual physical organization of the computers on the network and its connections
Bus topology
all devices are connected to a central cable, called the bus or backbone. Bus networks are relatively inexpensive and easy to install for small networks
Star topology
all devices are connected to a central device, called a hub. Star networks are relatively easy to install and manage, but bottlenecks can occur because all data must pass through the hub
Ring topology
all devices are connected to one another in the shape of a closed loop, so that each device is connected directly to two toher devices, one on either side of it.
Tree topology
combines the characteristics of the bus and star topologies. It consists of groups of star configured workstations connected to a liner bus backbone.
Wireless topology
devices are connected by a receiver/transmitter to a special network interface card that transmits signals between a computer and a server, all within an acceptable transmission range
predefined way that someone talks with or utilizes that service.