The Internet: A Comprehensive Overview
Internet
Searching
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•
Have
access
to
information
from
all
around
the
globe
•
You
can find
local
and
international news,
weather
reports, sports scores, stock prices, do
your baking, shop
on-line.
•
At
your fingertips, you can send messages to
others,
meet
new friends, take a course and
watch
a
movie
- all from your
computer
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•
You can access
the
Internet
from
a
computer
anywhere.
•
Success
in
business today requires
an
understanding of
the
Internet and how
it
works.
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http://www.google.co.za
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http://www.google.com
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Entice children
to
access these Web
sites.
•
E.g. Nintendo,
Barbie, White
House
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Six basic types of Web pages
exist:
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•
Contains content that describes a cause,
opinion or
idea
and
view of
an
organization.
•
The
purpose
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to convince the reader of
the validity
of
the
cause,
opinion
or
idea.
•
Greenpeace,
SPCA
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Contains content that promotes or
sells
products or services
of
an
organization.
•
May allow
you
to
purchase
their
products
or services
online.
•
Pick
n Pay, Woolworths, Look n
Listen
Informational Web
pages
•
Contains factual
information.
•
Many government agencies have
informational
pages providing
information
such as census data,
tax details
and
general
information.
•
Other organizations
provide information
such as
public
transportation schedules,
published research
findings.
•
Kalula.com,
Mango, SARS,
CSIR
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•
Contains newsworthy material
including
stories and
articles relating
to current
events, money, sports an
the
weather.
•
Provide summaries
of printed
articles.
•
CNN, Sky News,
Beeld,
News24
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A private
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any organization, often
maintain
a personal
Web
page.
•
Published
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variety
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hobby, for
friend,
special
interest.
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A search engine
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to
search for
information
on the
Internet.
•
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The information may
consist of Web
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information
and other
types
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files.
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•
Search engines work by storing
information
about Web pages, which
they
retrieve from the
Internet
itself.
•
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research results from different search
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•
Some search engines also
mine
data
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open directories.
•
Search engines operates
algorithmically
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mixture of algorithmic
and human
input.
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•
Think
about your search before you
begin.
•
Create
a search strategy
in
your
head.
•
Decide
if you
only want
to
brows
for
information
or
locate
a specific piece of
information.
•
Retrieve
everything you
can.
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•
Can
you
think
of societies,
organization, or
groups that
might
have information on your
topic?
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t
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u
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e
•
Keywords
•
Directories
-
-
Yahoo,
Aardvark,
•
Meta
search
engines
-
DogPile,
S
e
a
r
c
h
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t
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t
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g
y
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t
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p
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r
a
p
p
r
o
a
c
h
.
•
Try
something
different
(search
engine)
•
Look
while
you search you may
pick
up
tips.
G
u
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d
e
l
i
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s
t
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s
u
c
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f
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h
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g
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•
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t
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G
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r
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r
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T
y
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s
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•
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s
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s
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–
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b
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•
U
s
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m
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l
•
L
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g
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”
•
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•
T
r
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u
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o
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e
.
•
U
s
e
t
h
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p
l
u
s
s
i
g
n
(
+
)
t
o
c
o
m
b
i
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e
w
o
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d
s
-
•
L
o
o
k
f
o
r
a
l
t
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a
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w
a
y
s
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a
w
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d
–
c
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*
o
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r
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t
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c
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r
(
A
m
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)
a
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r
(
B
r
i
t
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s
h
)
G
u
i
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t
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c
c
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•
L
o
o
k
a
t
a
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t
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r
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a
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w
a
y
s
o
f
p
h
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a
s
i
n
g
a
s
e
a
r
c
h
–
d
i
s
t
r
i
c
t
s
i
x
,
d
i
s
t
r
i
c
t
6
,
d
i
s
t
r
i
c
t
s
i
x
•
U
s
e
t
h
e
a
d
v
a
n
c
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s
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a
r
c
h
f
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o
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n
g
i
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e
.
•
C
o
m
b
i
n
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k
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y
w
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d
w
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h
p
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p
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s
s
i
g
n
a
n
d
/
o
r
t
h
e
m
i
n
u
s
s
i
g
n
-
+cowboys +“wild
west” -football
-dallas
G
u
i
d
e
l
i
n
e
s
t
o
s
u
c
c
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g
•
B
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f
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y
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u
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/
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f
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c
t
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n
.
•
R
e
a
d
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F
A
Q
o
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a
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c
h
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n
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h
.
A
d
v
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y
•
E
n
t
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w
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a
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w
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a
n
d
a
c
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l
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n
(
:
)
,
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n
d
t
h
e
n
t
h
e
d
o
m
a
i
n
n
a
m
e
.
•
admission
site:
www.utoronto.ac
B
e
f
o
r
e
y
o
u
c
l
i
c
k
t
o
v
i
e
w
t
h
e
p
a
g
e
•
Evaluating Web
pages skilfully requires you to
do
two things
at
once:
•
Train
your eye and your fingers to
employ
a
series of
techniques
that
help
you quickly
find
what
you need to know about the
Web.
•
Train
your
mind
to
think
critically, even
suspiciously by asking a series
of
questions that
will help
you decide how
much
a
Web
page
is
to
be trusted.
B
e
f
o
r
e
y
o
u
c
l
i
c
k
t
o
v
i
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w
t
h
e
p
a
g
e
•
L
o
o
k
a
t
t
h
e
U
R
L
•
I
s
i
t
s
o
m
e
b
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s
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W
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b
s
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p
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•
~
o
r
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e
r
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o
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m
e
m
b
e
r
s
•
L
o
o
k
f
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r
a
p
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s
o
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l
n
a
m
e
-
p
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l
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s
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s
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y
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b
a
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”
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b
u
t
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d
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o
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s
t
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h
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m
c
a
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y
B
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f
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y
o
u
c
l
i
c
k
t
o
v
i
e
w
t
h
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p
a
g
e
•
D
o
m
a
i
n
n
a
m
e
•
I
s
t
h
e
d
o
m
a
i
n
e
x
t
e
n
s
i
o
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a
p
p
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o
p
r
i
a
t
e
f
o
r
t
h
e
c
o
n
t
e
n
t
?
•
Government
sites
look for
gov,
mil
•
Education or academic
sites
look for
edu,
ac
•
Non-profit organizations
look for
com, org,
net
B
e
f
o
r
e
y
o
u
c
l
i
c
k
t
o
v
i
e
w
t
h
e
p
a
g
e
•
D
o
m
a
i
n
n
a
m
e
•
Country code
look
for
au, sa, za, uk, us,
fr
•
Country codes no longer
tightly
controlled
but can
still
indicate where
the
page
originate
from
W
h
y
i
s
i
t
i
m
p
o
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t
a
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t
o
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v
a
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w
h
a
t
y
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f
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n
d
i
n
t
h
e
W
e
b
?
•
A
n
y
o
n
e
c
a
n
p
u
t
i
n
f
o
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m
a
t
i
o
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h
e
W
e
b
W
h
y
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m
p
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w
h
a
t
y
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u
f
i
n
d
i
n
t
h
e
W
e
b
?
•
M
a
n
y
p
a
g
e
s
a
r
e
n
o
t
u
p
d
a
t
e
d
a
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d
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h
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i
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f
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m
a
t
i
o
n
b
e
c
o
m
e
s
a
b
s
o
l
u
t
e
.
•
N
o
c
o
n
t
r
o
l
e
x
i
s
t
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The Internet is a vast network connecting people, businesses, and institutions globally. It offers access to a wealth of information, from news and weather updates to online shopping and social interactions. However, the ever-changing nature of the Internet means search results can vary, and not all information can be deemed reliable. Terminology such as World Wide Web, Web browser, and URL play crucial roles in navigating this digital landscape. Success in today's business world often hinges on a deep understanding of the Internet and its mechanisms.
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Presentation Transcript
What is the Internet about? Have access to information from all around the globe You can find local and international news, weather reports, sports scores, stock prices, do your baking, shop on-line. At your fingertips, you can send messages to others, meet new friends, take a course and watch a movie - all from your computer
What is the Internet about? You can access the Internet from a computer anywhere. Success in business today requires an understanding of the Internet and how it works.
Reality of searching on the Internet No two similar searches on the Internet will show the same hit results. The information on the Internet changes by minute and Web sites that is available today may not be there tomorrow. You can not believe everything that is posted on the Internet.
Terminology Internet is a worldwide collection of links that connects businesses, universities, education institutions and individuals
Terminology World Wide Web / WWW / Net / Web is a portal of the Internet. It consists of a collection of documents stored on computers around the world. Web page is a document on the Internet that can include text, pictures, sound, video, graphics etc.
Terminology Web Site is a collection of Web pages. Search engine is a software program you can use to find Web sites, Web pages and Internet files.
Terminology Web browser: is a program that allows you to view and explore information on the Internet e.g. Internet Explorer.
Terminology Browse to search the Internet for information. Surf - slang for browsing to search for information on the Internet.
Terminology URL each Web page has a unique address called a Uniform Resource Locator. You can instantly display any Web page if you know its URL http://www.google.co.za http://www.google.com
Terminology Beware of Stealth URLs Adult Web sites adopt URLs similar to popular Web sites. Entice children to access these Web sites. E.g. Nintendo, Barbie, White House
Types of Web pages Six basic types of Web pages exist:
Advocacy Web Pages Contains content that describes a cause, opinion or idea and view of an organization. The purpose is to convince the reader of the validity of the cause, opinion or idea. Greenpeace, SPCA
Business / Marketing Web Pages Contains content that promotes or sells products or services of an organization. May allow you to purchase their products or services online. Pick n Pay, Woolworths, Look n Listen
Informational Web pages Contains factual information. Many government agencies have informational pages providing information such as census data, tax details and general information. Other organizations provide information such as public transportation schedules, published research findings. Kalula.com, Mango, SARS, CSIR
News Web pages Contains newsworthy material including stories and articles relating to current events, money, sports an the weather. Provide summaries of printed articles. CNN, Sky News, Beeld, News24
Portal Web pages Often called a portal, offers a variety of Internet services from a single convenient location. Most portals offers the following search engines, local, national and international news, sport and weather. Google, AltaVista, Dogpile, Yahoo
Personal Web Pages A private individual who is normally not associated with any organization, often maintain a personal Web page. Published for a variety of reasons hobby, for friend, special interest.
Search engines A search engine is a tool designed to search for information on the Internet. The search result are usually presented in a list and are commonly called hits. The information may consist of Web pages, images, information and other types of files.
Search engines Search engines work by storing information about Web pages, which they retrieve from the Internet itself. These pages are retrieved by a Web crawler (also spider) an automated Web browser which follows every link it sees.
Search engines The usefulness of a search engine depends on the relevance of the result it gives back. Most search engines employ methods to rank the results to provide the best results first. The research results from different search engines varies widely from one to another.
Search engines Some search engines also mine data available in newsbooks, databases or open directories. Search engines operates algorithmically or are a mixture of algorithmic and human input.
Search engines It is important to remember that when you use a search engine, you are NOT searching the entire Web as it exist at that moment. Some information is only available on the Invisible Web (Deep Web), and can only be access by using subject directories.
Before you start to search Think about your search before you begin. Create a search strategy in your head. Decide if you only want to brows for information or locate a specific piece of information. Retrieve everything you can.
Search Strategy Step 1 Analyze your topic to decide where to begin? What unique words, distinctive names, abbreviations or acronyms are associated with your topic? Can you think of societies, organization, or groups that might have information on your topic?
Search Strategy What unique phrases can you identify in your topic? Can you think of synonyms or equivalent terms? After all a dog is also a canine, a pooch, a mutt, a hound, a pet and man s best friend Can you think of variant spelling of words?
Search Strategy STEP 2 Decide which type of search engine to use Keywords Directories - Meta search engines - Google Yahoo,Aardvark, - DogPile,
Search Strategy Step 3 Change and vary your approach. Try something different (search engine) Look while you search you may pick up tips.
Guidelines to successful searching Be specific - Hurricane Hugo Use nouns and objects as keywords fiesta dinnerware plates cups saucers Put the most important term first +hybrid +electric +gas +vehicles
Guidelines to successful searching Use the asterisk (*) to find plurals of words retriev* returns retrieves, retrieval, retriever and any other variation. Type keyword in lowercases to find both lower and uppercase variations president retrieves president and President.
Guidelines to successful searching Use more than two keywords interaction vitamins drugs Use quotation marks ( ) to create phrases so that the search engine can find the exact sequence of word bye bye miss american pie
Guidelines to successful searching Use a hyphen alternative email vs e- mail Limit search by language. Use uppercase characters for Boolean operators in your search to differentiate between the words and the operators cats AND dogs NOT mice
Guidelines to successful searching Combine keyword wherever possible into phrases search engine tutorials Avoid common words e.g. water, unless they form part of a phrase bottle water Think about words you expect to find in the document and use it as keywords anorexia bulimia eating disorder
Guidelines to successful searching Write down your search strategy and revise it before you type it into a search engine query box. It help to revise your search strategy if your hits were unsuccessful
Guidelines to successful searching Try an alternative search engine, do not stick to just one. Use the plus sign (+) to combine words - Look for alternative ways of spelling a word col*or returns color (America) and colour (British)
Guidelines to successful searching Look at alternative ways of phrasing a search district six, district 6, districtsix Use the advance search field of a search engine. Combine keyword with phrases using the double quotes and the plus sign and/or the minus sign - +cowboys + wild west -football -dallas
Guidelines to successful searching Before you use a search engine read about its help function / or about function. Read the FAQ of a search engine, it provide helpful hints on how to search.
Advance search strategy Enter what you are looking for in the search field, followed by the word site and a colon (:), and then the domain name. admission site: www.utoronto.ac
Before you click to view the page Evaluating Web pages skilfully requires you to do two things at once: Train your eye and your fingers to employ a series of techniques that help you quickly find what you need to know about the Web. Train your mind to think critically, even suspiciously by asking a series of questions that will help you decide how much a Web page is to be trusted.
Before you click to view the page Look at the URL Is it somebody s personal Web site or page ~ or % or users or members Look for a personal name Web site are not necessarily bad , but you need to investigate them carefully - personal
Before you click to view the page Domain name Is the domain extension appropriate for the content? Government sites look for gov, mil Education or academic sites look for edu, ac Non-profit organizations look for com, org, net
Before you click to view the page Domain name Country code look for au, sa, za, uk, us, fr Country codes no longer tightly controlled but can still indicate where the page originate from
Why is it important to evaluate what you find in the Web? Anyone can put information on the Web
Why is it important to evaluate what you find in the Web? Many pages are not updated and the information becomes absolute. No control exist about the quality and trustworthiness off the information available on the Internet.
Why is it important to evaluate what you find in the Web? Web pages are created with a specific purpose in mind They do not simply grow in the Web like mildew
How to evaluate a Web Page Can you tell who wrote it? Name of page author? Name of the organization, institution, agency do you recognize it? E-mail and contact details Authors credentials on the subject
How to evaluate a Web Page Credentials for the subject matter? Looks for links to: About us Philosophy Background Biography Is it current? Look for last updated date
How to evaluate a Web Page Are there any links to other Web page? Does the links open? Look for a link called additional sites related sites related links Look who link to that We page Are there many links? What kind of sites does link to it?
Evaluating Web Pages Was the page put on the web to Inform give facts or data Persuade / explain Sell / entice Is it appropriate for your purpose? Think about the tone of the page Is it as credible and useful as the resources available in print or through the library.
Do some detective work Search the URL in alexa.com Click on Site info for Who owns the domain? Who links the site? What did the site look like in the past?
