ICT11A
[FINALS] OBJECTIVES:
OBJECTIVES (CONT.)
The Internet and the Explain the difference between the World Describe a browser.
World Wide Web Wide Web and the Internet.
Identify browser features.
Explain the origin of the Internet and
describe how the Internet works. Apply and use browser features.
Describe the major features of the
Internet.
Describe other Internet
Explain how to connect to the Internet. features.
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The Internet is a global network of
computing devices communicating with
each other in some way, whether they're
sending emails, downloading files, or
sharing websites.
It connects millions of computers
together globally, forming a network in
which any computer can communicate with
any other computer as long as they are
both connected to the Internet.
4 What is the Internet? 5 6
the World Wide Web usually
called the Web for short is a collection EVOLUTION OF THE INTERNET
of different websites you can access
through the Internet. The Internet originated as ARPANET (Advanced
A website is made up of related text, images, and Research Project Agency Network) in
other resources. September 1969 and had two main goals:
Websites can resemble other forms of media like
newspaper articles or television programs or they
can be interactive in a way that's unique to Allow scientists at
computers. Function even if part
different physical
The purpose of a website can be almost anything: a of the network were
locations to share
news platform, an advertisement, an online library, disabled or destroyed
information and work
a forum for sharing images, or an educational site by a disaster
together
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Unfortunately, the Cold War existed at that
time, and networks were protected from
History of the Internet
enemy attack. Whenever a single server As you might expect for a technology so
failed, the entire network failed expansive and ever-changing, it is impossible
to credit the invention of the Internet to a
was needed; one that would be operational single person. The Internet was the work of
even when one part of the network shut dozens of pioneering scientists, programmers
down. and engineers who each developed new
features and technologies that eventually
U. S. Department of Defense, thought that merged to become the information Dr. Leonard Kleinrock pioneered the mathematical theory of packet
there was a demand for computer networks superhighway we know today. networks, the technology underpinning the Internet. For his enormous
to help scientists and researchers from contribution to understanding the power of packet networks he was
honored with the Charles Stark Draper Award as one of the fathers of
widely dispersed areas 10 11 the Internet, along with Vinton Cerf, Robert Kahn, and Larry Roberts. 12
Tim Berners-Lee WHO CONTROLS THE INTERNET? Connecting to the Internet
was born in London, England and No one actually owns the Internet, and no single person or organization
controls the Internet in its entirety. The Internet is more of a concept than an actual
graduated in Physics from Oxford tangible entity, and it relies on a physical infrastructure that connects networks to
other networks.
University in 1976.
Worked at CERN [European Council for Nuclear World Wide Web Internet2 (I2)
Research), lab in Geneva Consortium (W3C) Internet-related research and
Envisioned a network of computers much like a spider development project
Oversees research, sets
web standards and guidelines Develops and tests advanced
Internet technologies
CERN site considered the birthplace of the World Wide Tim Berners-Lee, director
Web
He is currently the Director of the World Wide Web
Consortium, the group that sets technical standards
for the Web 13 14 15
HOW TO CONNECT THE INTERNET AND
Through an online service A hot spot is a wireless network that provides Internet
THE WORLD WIDE WEB?
A cybercafé is a location connections to mobile computers and devices
that provides computers
1. Determine how you will obtain access
with Internet access,
to the internet usually for a fee
Connect from home, school, or
business
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2. Acquire and install the required Connecting to the Internet
computer hardware and software
Computer (Network
Interface card,
Modem and other
communication
devices)
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MARC ANDREESSEN WEB BROWSERS:
Web Browsers Developed the first WorldWideWeb, February 25, 1991
graphical browser Mosaic, April 22, 1993
Netscape Navigator and Netscape
called Mosaic in 1993 Communicator, October 13, 1994
led to Netscape Internet Explorer, August 16, 1995
Opera, 1996
a browser is a software application used Navigator Mozilla Navigator, June 5, 2002
to locate, retrieve and display content on Safari, January 7, 2003
the World Wide Web, including Web pages, Mozilla Firefox, November 9, 2004
images, video and other files. Google Chrome, September 2, 2008
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Connecting to the Internet WHAT IS A DIGITAL SUBSCRIBER
LINE? IS FIBER OPTIC INTERNET
DSL (Digital Subscriber Line) is a technology for FASTER THAN DSL?
Wired Wireless
bringing high- bandwidth information to homes and
Cable Internet Wi-Fi (wireless small businesses over ordinary copper telephone lines. Fiber-optic Internet is
service fidelity) What is a Fiber optic Internet? undoubtedly faster than DSL.
DSL (digital Mobile broadband With much of the backbone of the internet A fiber connection can have a 5Gb
subscriber line) Fixed wireless deployed using fiber optic cable, it is no surprise
movie downloaded in roughly ten
that fiber optics are the fastest form of broadband
Fiber to the Satellite Internet technology. In fact, the latest deployments by minutes much faster than a DSL or
Premises (FTTP) Service Verizon FiOS and Google Fiber are capable of
reaching speeds of 500mbps and 1gbps respectively. even cable connection could.
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Connecting to the Internet Connecting to the Internet The World Wide Web
An IP address is a sequence of numbers that uniquely The World Wide Web (WWW), or web, consists of a
identifies each computer or device connected to the worldwide collection of electronic documents
Internet (webpages)
A website is a collection of related webpages and
A domain name is a text-based name that corresponds associated items
to the IP address A web server is a computer that delivers requested
webpages to your computer
A DNS server translates the domain name into its
Web 2.0 refers to websites that provide a means for
associated IP address users to share personal information, allow users to
modify website content, and provide applications
through a browser
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Media on the Web
Multimedia refers to any application that
combines text with:
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A search engine is software that finds websites, Popular examples of search
webpages, images, videos, news, maps, and other engines are
information related to a specific topic
Search engines use little programs called spiders
or bots that scour the Internet, follow links,
and bring back this information to the search
Web
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INTERNET SERVICES OTHER INTERNET SERVICES
OTHER INTERNET SERVICES
A chat is a real-time typed
Blog or Web log
conversation that takes place
Chat rooms Email is the Instant messaging
on a computer or mobile
transmission of messages (IM) is a real-time
Instant messaging device
and files via a computer Internet communications
Mailing lists
network service A chat room is a website or
Newsgroups and bulletin boards
application that permits users
Online conferencing
to chat with others who are
File Transfer Protocol online at the same time
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OTHER INTERNET SERVICES OTHER INTERNET SERVICES
OTHER INTERNET SERVICES
A discussion forum is an online area in which users VoIP (Voice over IP) enables users to speak
have written discussions about a particular subject to other users over the Internet FTP (File Transfer Protocol) is an Internet standard
that permits file uploading and downloading to and
from other computers on the Internet
Many operating systems include FTP capabilities
An FTP server is a computer that allows users to
upload and/or download files using FTP
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NETIQUETTE
Netiquette is the code of acceptable Internet
behavior
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