Essay Example For High School about Chapter 7

a collection of comps

one center comp, all others access each other thru center

each comp can access each other comp

linear one-way connection of all comps to one line

separate server comp accessed by others that arent servers

your comp acts like to server to other comps like yours

local area network.

small geographic area

wide area network. large geographic area.

closed private network

private network with some public access ability

virtual private network. private/secure network path across public network

one method that allows computers to connect to a network

transmits all data received to all network devices conected to it, regardless of which device the data is being sent to

central device of a wired network; identify which device is the one the data is intended for, unlike hubs

connects multiple networks. send data to planned recipient only.

device used to grant network access to wireless client devices

usually combines capabilities of router, switch, and wireless access point into one and allows wireless networks to connect to wired networks

continuous waves

1s and 0s that each represent data

the distance between two points in the same phase in consecutive cycles of a wave

The height of a wave

the number of occurrences within a given time period

the amount of data that can be transferred in a given time period

a device that enables a computer to communicate over analog networking media, like connecting to the internet via telephone lines

thin strands of insulate wire twisted together.

Least expensive. In use the longest. Analog and digital capable. Common for LANs.

originally made for large video transmissions.

thick center wire insulated. more expensive. less susceptible to interference, carries more data faster. used for cable TV, short telephone transmissions, computer networks

newest and fastest. multiple fiber/glass strands.

sends data by light pulses at bns of bits per sec. high-speed backbone of networks, internet infrastructure, some biz and home, etc.

most use radio signals. can be short range like mouse to comp, medium like comp to a hotspot, or long like giant wireless hotspots or cell phone coverage

the most widely used standard for wired nets. typically used with LANs that have star topology but can be used with WANs and MANs

metropolitan area network.

most widely used comms protocol today. Used to transfer data over Internet. uses two protocols (TCP and IP). Uses packet switching to transmit data.

technique used for sending data over Internet.

msgs are separated into small units (packets) which contain info about sender and receiver, msg data, and how to reassemble pkts. pkts travel over nets separately, reassembled by destination comps.

defines protocol btw. two comps or across comps in a network