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Terms in this set [24]
network
a collection of computers and devices connected together via communications devices and transmission media.
A value-added network [VAN]
a third-party business that provides networking services such as EDI.
. An intranet [intra means within]
an internal network that uses Internet technologies
extranet [extra means outside or beyond
which allows customers or suppliers to access part of its intranet.
local area network [LAN]
a network that connects computers and devices in a limited geographical area, such as a home, school, office building, or closely positioned group of buildings.
metropolitan area network [MAN]
a high-speed network that connects local area networks in a metropolitan area, such as a city or town, and handles the bulk of communications activity across that region
wide area network [WAN]
a network that covers a large geographic area [such as a city, country, or the world] using a variety of wired and wireless transmission media.
personal area network [PAN]
is a network that connects computers and devices in an individual's workspace using wired and wireless technology.
The disadvantages of BANs
include data validity and security.
client/server network
one or more computers act as a server, and the other computers on the network request services from the server
server, sometimes called a host computer,
, controls access to the hardware, software, and other resources on the network and provides a centralized storage area for programs, data, and information.
peer-to-peer [P2P
a simple, inexpensive network architecture that typically connects fewer than 10 computers. Each computer or mobile device, called a peer, has equal responsibilities and capabilities, sharing hardware [such as a printer], data, or information with other computers and mobile devices on the peer-to-peer network
Communications software consists of programs and apps that
[1] help users establish a connection to another computer, mobile device, or network; [2] manage the transmission of data, instructions, and information; and [3] provide an interface for users to communicate with one another.
Ethernet
is a network standard that specifies no central computer or device on the network [nodes] should control when data can be transmitted
A token
a special series of bits that functions like a ticket. The device with the token can transmit data over the network. Only one token exists per network. This ensures that only one computer transmits data at a time.
LTE [Long Term Evolution]
a network standard that defines how high-speed cellular transmissions use broadcast radio to transmit data for mobile communications
dial-up modem
is a communications device that converts digital signals to analog signals and analog signals to digital signals so that data can travel along an analog phone line.
wireless access point [WAP]
a central communications device that allows computers and devices to transfer data wirelessly among themselves or to a wired network using wireless technologies, such as Wi-Fi. To strengthen your wireless signal: If your wireless router or wireless access point has an antenna[s], make sure the antenna[s] is extended completely
A router
a communications device that connects multiple computers or other routers together and transmits data to its correct destination on a network
broadband router
a device that performs the functions of a router and also a broadband modem.
A hub or switch
a device that provides a central point for cables in a network. Larger networks typically use a hub, while smaller networks use a switch. Some hubs and/or switches include routers.
Broadband
media transmit multiple signals simultaneously
bandwidth
The amount of data, instructions, and information that can travel over transmission media
Latency
the time it takes a signal to travel from one location to another on a network
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