NETWORKS/INTERNET

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created 7 years ago by Gutierrezhjhs
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updated 7 years ago by Gutierrezhjhs
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1

Network

Computers and devices connected together to communicate or share devices.

2

LAN

Local Area Network-Computers and devices connected within a confined space such as an office.

3

WAN

Wide Area Network-Multiple computers connected over larger geographical areas

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VPN

Virtual Private Network-Using a public network to securely access a private network

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File Server

A computer that processes requests from clients across networks

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Client

Hardware or software that sends requests to a server.

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Network Speed

Measured in bits per second(bps)

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Firewall

Software or hardware that helps screen out hackers and viruses

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Wireless Communication

Uses radio waves to allow devices to exchange data or connect to the internet over short distances

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IP Address

A unique, numerical address assigned to each computer or device on a network- used to locate devices across a network

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Internet

A global network of networks

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World Wide Web (www)

A collection of web pages you can access through the internet- the WWW is only part of the internet

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Website

A connected group of web pages

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Web page

One page on a website

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Link or hyperlink

A word, phrase, or picture that links or connects you to another website or webpage

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HTTP (Hyper Text Transfer Protocol)

The rules used to transfer data over the web

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HTML (Hyper Text Markup Language)

The programming language of the web

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URL

Uniform Resource Locator- The address of a website, web page or file on the web

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Search Engine

A program that searches the web for websites or pages that match keywords

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Boolean Operators- AND, OR, NOT

help narrow down a search.

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Modem

Connects the computer to a phone line

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Browser

Application program that allows you to view information on the web and move from location to location. Examples: Internet Explorer, Firefox

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ISP (Internet Service Provider)

A company that provides a connection to the internet for a fee

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DNS (Domain Name System)

Allows us to use names instead of IP address to locate across a network.

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Common Domain Name Extensions

.com = company, .edu = education, .org = organization, .gov = government, .mil = military

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Homepage

The first page that opens every time a browser is opened.

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Favorites

A place to store your favorite or often visited URLs

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Plugin

An add-on for a program that adds functionality

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Download

Opening or saving a file or program from the internet "down"to your computer

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Upload

Loading a file from your computer "up" to the internet

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Cookies

A small message sent from a website that keeps track of your preferences

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Virus

a kind of malicious software written intentionally to enter a computer without the user's permission or knowledge, with the ability to copy itself and continue to spread

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Malware

Malicious software

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Adware

Automatically displays advertisements

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Spyware

Software that enables the user to gain information from your computer without your knowledge

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Time Bomb

Watches for a certain time date or time to activate a virus

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Logic Bomb

Waits for a specific set or input to activate the virus

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File Virus

Attaches to an application program or operating system file

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Boot Sector Virus

Infects system files your computer needs to start up

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Trojan Horse

A computer program that seems to perform one function while actually doing something else

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Worm

Virus that spreads from computer to computer, usually through a network

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Antivirus Software

Software that attempts to recognize and destroy viruses before they infect your computer