where did it all begin?pinecrestglades.enschool.org/ourpages/auto/2019/8/16/54572293/t… ·...
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Where Did It All Begin? The World Wide Web began at CERN in Geneva,
Switzerland
In one of the largest scientific laboratories in the world.
The laboratory was called CERN (Counseil European Pour la Recherche Nucleaire – European Laboratory for Particle Physics)
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What is the Internet? The Internet is the worldwide, publicly accessible
network of interconnected computer networks that transmit data by packet switching.
It is a "network of networks" that consists of millions of smaller domestic, academic, business, and government networks, which together carry various information and services, such as email, online chat, file transfer, and the interlinked Web pages and other documents of the World Wide Web.
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What does WWW stand for? WWW = World Wide Web
The Internet and the World Wide Web are not synonymous: Web is actually something that is available via the Internet
The Internet is a collection of interconnected computer networks
The Web is a collection of interconnected documents, linked by hyperlinks and URLs.
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What is a Network? Network - two or more computers that are connected
for the purpose of sharing information
LAN A local area network (LAN) is a computer network covering a small
area, like a home, office, or small group of buildings.
Computers that are near each other.
WAN A wide area network or WAN is a computer network covering a
broad geographical area.
The most well-known example of a WAN is the Internet.
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What is ARPANET? First network developed in early ’60’s and ’70’s by
scientists and military experts
Allowed them to share information and research data over long distances
An experimental network designed to see how well distributed networks work
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Connecting to the Internet Modem - A MO-dulator DE-Modulator.
Converts digital information to analog and analog to digital. Analoglike sound waves Digitalsignal in 1s and 0s
Types of Modems
Telephone - designed to modulate a data signal over the telephone
DSL - designed to modulate a data signal over the telephone using new technology to increase transmission speed
Cable Modem - designed to modulate a data signal over cable television
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Analog & Digital Information Analog - Like sound waves, a computer cannot read
them.
Digital - 1s and 0s. Computer Language (ones and
zeros)
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What is an ISP? Internet Service
Provider
A service company that provides a user with an account on a host computer to have access to the Internet
ISPs
Comcast (Xfinity)
AOL
Digis
Netzero
Earthlink
CenturyLink
People PC
Utopia
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Navigating a in the Web
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What is a Browser? Software which allows you to view information and
Web Pages on the WWW
Different browsers can have radically different capabilities and limitations
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Viewing the Internet Types of Browsers
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The Parts of a Browser Title Bar
Shows the title of the open Web Page and the name of the Browsers.
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More parts of a Browser Tabs:
View multiple sites in a single browser window
Instant Search Box
allows a quick search of the Internet
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More parts of a Browser Toolbar
Shows the icons for moving around the Web Page.
Favorites
add favorite websites or sites you frequently visit
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Toolbar & Buttons Home
Quickly takes your back to your default homepage
Print the website you are viewing
Page and Tools icons
Allows access to additional options such as toolbars, history, etc.
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More parts of a Browser Status Bar
Shows the progress and loading status of the website
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Where is the Webpage? The webpage come after the toolbar and it is the
information is located
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Uniform Resource Locator URL – Uniform Resource Locator.
A URL can be thought of as the address of a web page
Parts of a URL
Transfer Protocol Filename Domain Name
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What is a domain? The group that website or email address belongs to.
It tells where the address is located i.e. .com; .edu; .gov
The name that is to the right of the last dot in the Internet address
www.yahoo.com
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Some common domains…. .COM -- Commercial
.EDU -- Educational
.NET -- Network
.GOV -- Government
.ORG – Non-Profit Organizations
.INT -- International
.MIL -- Military
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Navigating the Internet
Search Engine - is a program designed to help find information on the World Wide Web,
They locate and isolate desired information by searching for keywords that the user specifies.
Examples of Search Engines
Yahoo
MSN
Ask Jeeves
Dog Pile
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Common Internet Terms Surfing - the term we use when exploring the Internet
Hit - the term used when you connect to the page you
are looking for
Link - allows you to jump from one site to another
Email - the type of mail sent over the internet
Chatting - talking with someone on the internet. Often called Instant Messaging
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Internet Language & Communication
HyperText Markup Language (HTML)
The coding scheme used to format text for use in developing Web Pages on the WWW
<b>
<p>
<img src=HTTP://www.sony.com>
<a href=HTTP://www.sony.com
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HTTP HyperText Transfer Protocol
The transmission standard used to send an HTML document across the WWW
Ensures reliable connections between many different computer types
A common set of standards that ensures all computers connected to the Internet will have common ground on which to work
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The Internet & You Netiquette - the rules of behavior on the internet
Privacy - There is NO privacy on the Internet. All visits to websites are tracked using cookies and logs
Passwords can help protect your information on the Internet
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What is Shareware? Software that you can obtain for free on a trial basis
May require some payment for continued use
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What is Freeware? Software that is distributed at no cost to the user
The author maintains the copyright
Basically: Software that is copyrighted but can be used freely
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What is Public Domain? Software that is NOT copyrighted
It can be copied or used freely
Basically: Public Property
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Pop-ups Pop-ups - Unwanted advertisements on the web
Pop-ups usually come from downloading “free” software.
Some companies give you software for free as long as they can put SPYWARE on your computer and monitor where you go on the internet.
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What Are Firewalls? A Hardware or software blocking mechanism that
block unauthorized intruders into a computer system
Blocks potential hackers from your invading your computer or your network.
Any computer that is connected to the internet should have a firewall
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Other Internet Stuff User Friendly – A term used when a program or
website can be used with ease by people who have little or no computer experience.
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Acceptable Use Policy An Acceptable Use Policy (AUP; also sometimes
acceptable usage policy) is a set of rules which outline the ways in which the network may be used.
You all signed and AUP in order to gain access to the school network
You have signed a contract to take care of the computer
equipment – No exceptions!
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