Evolution of the Internet
What is Web 1.0? Web 1.0 was the earliest stage in
the evolution of the World Wide
Web. Web users were only able to
view webpages but not contribute
in any wayto the content of the
webpages, unless they were a
webpage developer. Web 1.0 was
characterised by fewer users, slow
Internetconnections and HTML
pages with hyperlinks.
What is Web 2.0? Web 2.0 was used to describe
websites that were no longer the
static pages of Web 1.0. The users
were able to interact dynamically
and communicate with others on
the webby creating and using user
generated sites, social networking
sites, blogs, wikis, video sharing
sites like You Tube, etc
What are the 5 characteristics of 1) Users canmake changes to
Web 2.0? webpages. For example,
Amazon allows visitors to post
product reviews that future
visitors will be able toread.
2) Users canuse webpages to link
to other users. For example,
Social networking sites like
Facebook and Instagramenable
users to find each other and
keep in touch.
3) Fast and efficient ways to share
content. For example: YouTube,
a user can create a video and
upload it to the site for others to
watch.
4) Uses can receive notifications of
updates in real-time.
5) Users can connect using a
variety of devices.
Web 2.0 is characterised by more
users with greater sharing, faster
Internetconnections, and social
media applications providing
, wikis, blogs and forums.
What is Web 3.0? Web 3.0 providesusers with a
more personalised
Internetexperience. Each user will
have a unique Internetprofile
based on the specific user's
browsing history. This means that
if two different users each
performed an Internetsearch with
the same keywords using the same
search engine, their search
resultsmay be entirely different as
each individual's profile is
different. E-Commerce and online
advertising, Web 3.0 will be more
customised to the user's
preferences and deliver
advertising according to taste
What is Wed 4.0? Web 4.0 is described as the mobile
web. The webneeded to adapt to
its mobile surroundings. Web 4.0
connects all devices in the real
and virtual world in real-time
Scripting
What is a script? A scriptis a set of instructions. For
webpages they areinstructions
either to the webbrowser (client-
sidescripting) or to the server
(server-sidescripting).
What are the diffenrent types of Client-side
scripting? Server-side
Explain the what happens when When you access a webpage on
you acces a web page. the Internet, you are sitting at the
client machine and send a URL
address to a web server
somewhere in the world. This
server returns the corresponding
webpage to the client machine
which can be in the format ofa
HTML document. The client
machine caninterpret the HTML
using a webbrowser application
like InternetExplorer or Google
Chrome
What is a client? The client is the system on which
the webbrowser is running.