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COMPUTER EDUCATION 9
MODULE 3
Access, Communication, and
Other Internet Services
Prepared By: Engr. Jeremy M. Flores
ACCESS
The Internet and telephone
systems are similar. You can
connect a computer to the
Internet much like you
connect a phone to the
telephone system.
ACCESS
The most common way to
access the Internet is through
an Internet Service Provider
(ISP).
ACCESS
The providers are already
connected to the Internet and
provide a path or connection
for individuals to access the
Internet.
ACCESS
The most widely used
commercial Internet Service
Providers use telephone lines,
cable, and/or wireless
connections.
ACCESS
Connection Technologies
DSL
Cable
Wireless Modems
ACCESS
Browsers are programs that
provide access to Web
resources. It allows you to
explore, or to surf, the Web by
easily moving from one
Website to another.
ACCESS
Four Well-Known Browsers
Apple Safari
Google Chrome
Microsoft Internet Explorer
Mozilla Firefox
ACCESS
For browsers to connect to
resources, the location or
address of the resources must
be specified. These addresses
are called Uniform Resource
Locators (URLs).
ACCESS
Parts of URL
Hypertext Transfer Protocol
Domain Name
ACCESS
HTTP presents the protocol
used to connect to the
resource. It is used for Web
traffic and is the most widely
used Internet Protocol.
ACCESS
Domain Name indicates the
specific address where the
resource is located. The last
part of the Domain Name
following the dot (.) is the Top
Level Domain (TLD).
ACCESS
TLD, also known as the Web
Suffix, typically identifies the
type of organization of the
Website.
ACCESS
DOMAIN TYPE
.com Commercial
.edu Educational
.gov Government
.mil Military
.net Network
.org Organization
ACCESS
Once the browser has
connected to the Website, a
document file, containing
HTML, is sent back to your
computer.
COMMUNICATION
Communication is the most
popular Internet activity, and
its impact cannot be
overestimated.
COMMUNICATION
Electronic Mail (E-mail) is the
transmission of electronic
messages over the Internet.
Web-Based E-mail Accounts
Client-Based E-mail Accounts
COMMUNICATION
Web-Based E-mail Accounts
do not require an E-mail
program to be installed on
your computer.
COMMUNICATION
Once your computer’s browser
connects to an E-mail Service
Provider, a special program
called Webmail Client is run on
the E-mail Service Provider’s
computer to begin E-mailing.
COMMUNICATION
Client-Based E-mail Accounts
require a special program
known as an E-mail Client to
be installed on your computer.
COMMUNICATION
Elements of E-mail
Header
Message
Signature
COMMUNICATION
E-mail Header Information
Addresses
Subject
Attachments
COMMUNICATION
Unsolicited or unwelcome E-
mail are called SPAM.
Distraction, Nuisance
Dangerous
COMMUNICATION
A more efficient approach to
control spam has been the
development and use of Spam
Blockers or Spam Filters.
COMMUNICATION
Messaging is another
messaging system that the
Internet provides.
Text Massaging (SMS)
Instant Messaging (IM)
COMMUNICATION
Text Messaging is the process
of sending a short electronic
message, typically less than
160 characters, using a
wireless network to another
person.
COMMUNICATION
Instant Messaging allows two
or more people to contact
each other via direct, live
communication.
COMMUNICATION
Social Networking is one of the
fastest growing and one of the
most significant Web 2.0
applications.
COMMUNICATION
Social Networking sites focus
on connecting people and
organizations that share
common interest or activity.
COMMUNICATION
These sites typically provide
wide array of tools that
facilitate meeting,
communicating, and sharing.
COMMUNICATION
Best Known Social Networks
Facebook
Google+
LinkedIn
COMMUNICATION
Facebook was initially
launched by Mark Zuckerberg
at Harvard University for
college students in 2004.
COMMUNICATION
By 2008, Facebook is the most
widely used Social Networking
site. It now has a billion users
worldwide.
COMMUNICATION
Features of Facebook
Instant Messaging
Photo and Video Sharing
Games
COMMUNICATION
Categories of Facebook Users
Individuals
Businesses
Communities
COMMUNICATION
Google Inc. launched
Google+ in 2011. it is a
combination of some Google
Inc.’s previously existing and
new services.
COMMUNICATION
Google Inc. Services
Circles
Hangouts
Sparks
COMMUNICATION
LinkedIn started in 2003 and
has become the premier
business-oriented social
networking site.
COMMUNICATION
LinkedIn provides tools to
maintain business contacts,
develop extended business
networks, research individual
businesses, search for job
opportunities, and more.
COMMUNICATION
Other Social Networking Sites
Blogs
Microblogs
Webcasts and Podcasts
Wikis
COMMUNICATION
Blogs are personal Websites
used to keep in touch with
family and friends. Blog posts
are time-stamped and
arranged with the newest item
first.
COMMUNICATION
Microblogs publish short
sentences that only make a
few seconds to write, rather
than long stories or posts like a
traditional blog.
COMMUNICATION
Webcasts and Podcasts deliver
media content such as music
and movies over the Internet to
your computer.
COMMUNICATION
Webcasts use streaming
technology in which audio and
video files are continuously
downloaded to your computer
while listening to and/or
viewing the file content.
COMMUNICATION
Podcasts do not use streaming
technology. Before a podcast
can be run, the media files
have to be downloaded and
saved to your computer.
COMMUNICATION
Wikis are Websites specifically
designed to allow visitors to
use their browser to add, edit,
or delete the site’s content.
COMMUNICATION
Wiki comes from the Hawaiian
word for FAST, which describes
the simplicity of editing and
publishing through Wiki
software.
COMMUNICATION
Wiki supports collaborative
writing in which there is no
single expert author, but rather
a community of interested
people that builds knowledge
over time.
SEARCH ENGINES
Search Engines are specialized
programs that assist you in
locating information on the
Web and the Internet.
SEARCH ENGINES
Ask
Bing
Google
Yahoo
SEARCH ENGINES
Content Evaluation
Authority
Accuracy
Objectivity
Currency
ELECTRONIC COMMERCE
Also known as E-Commerce, it
is the buying and selling of
goods over the Internet.
ELECTRONIC COMMERCE
Advantages
Eliminated Operations Cost
Reduced Inventory
ELECTRONIC COMMERCE
Disadvantages
Immediate Delivery of Goods
Inability to TRY-ON Purchase
Security of Online Payments
CLOUD COMPUTING
Cloud Computing uses the
Internet and the Web to shift
many of these computer
activities from the user’s
computer to other computers
on the Internet.
CLOUD COMPUTING
Basic Components
Clients
Internet
Service Providers
CLOUD COMPUTING
Clients are corporations and
end users who want to access
data, programs, and storage.
CLOUD COMPUTING
The Internet provides the
connection between the client
and the providers.
CLOUD COMPUTING
Service Providers are the
organizations with computers
connected to the Internet that
are willing to provide access to
software, data, and storage.
CLOUD COMPUTING
Efficiency of Cloud Computing
The speed and reliability of the
user’s access to the Internet, and
the Internet’s capability to
provide safe and reliable
transmission or data and
programs.
WEB UTILITIES
Plug-Ins
Filters
File Transfer Utilities
Internet Security Suites
WEB UTILITIES
Plug-Ins are programs that are
automatically started and
operate as a part of your
browser.
WEB UTILITIES
Widely Used Plug-Ins
Adobe Acrobat Reader
Adobe Flash Player
Apple QuickTime
Microsoft Windows Media Player
RealNetworks / RealPlayer
WEB UTILITIES
Filters block access to selected
Websites. It allows individuals,
as well as organizations, to
restrict selected sites and set
time limits.
WEB UTILITIES
File Transfer Utilities allow you to
copy files to your computer from
specifically configured servers
(downloading) and to copy files
from your computer to another
computer on the Internet
(uploading).
INTERNET SECURITY SUITES
An Internet Security Suite is a
collection of utility programs
designed to maintain your
security and privacy while you
are on the Web.
INTERNET SECURITY SUITES
Best Known Security Suites
McAfee’s Internet Security
Symantec’s Norton Internet
Security

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COMPED9 Module 3 Access, Communication, and Other Internet Services