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week 4 - Week 4: Web Application
Basics — Internet, Web, and
HTML
Topic Web Basics : the web and html
Date
Column
Notes
Learning Outcomes:
1. Understand the difference between the Internet and the Web
2. Understand how the information is being exchanged on the web
3. Understand the HTML format used for exchanging the documents on the web
The objectives map to the 3 and 7 learning outcomes of the course:
Design, develop and implement basic/intermediate level software applications, and
Use a software development environment to develop and deploy business
applications on the Web.
Internet and the Web
Internet = global networking infrastructure that interconnects various
computers networks
⇒ how does the Internet work towards fulfilling those requests for web ressources
week 4 - Week 4: Web Application Basics — Internet, Web, and HTML 1
, request from device doesn’t go directly to remote computer hosting the web page but to
the Internet Service Provider = a company that provides its customers with access to the
Internet and acts as a Gateaway. The ISP will relay the request to the networl
first the identifier of the requested ressource (e.g www.manchester.ac.uk is translated to a
certain IP address. This address is used by computers to maintain communication
between themselves). This is done by a domain name server (DNS) which effectively
translates the addresses that human prefer to use to IP addresses. The request will then be
transmited to a Network Access Point (NAP) which serves as a traffic echange point and
provides an access to the backbone of the internet
the request may go through several access points until it is relayed to the ISP of the
computer hosting the web ressource. This ISP will then forward the request to that
computer. The remote computer will respond by providing the requested ressource
which will have to be sent all the way back through the network.
Web = Information Sharing Model, that is an information system which
nowadays comprises a wide array of hyperlinked ressources made
accessible via the internet = connecting people, so the web is a part of
the internet
own device runs web browser which is a softare app designed to retrieve web ressources
and displaying them to the user.
the browser on user request loads the desired ressource (e.g a web page = a hypertext doc
that may contain text graphics and other content, and hyperlinks to other sources on the
web)
week 4 - Week 4: Web Application Basics — Internet, Web, and HTML 2
week 4 - Week 4: Web Application
Basics — Internet, Web, and
HTML
Topic Web Basics : the web and html
Date
Column
Notes
Learning Outcomes:
1. Understand the difference between the Internet and the Web
2. Understand how the information is being exchanged on the web
3. Understand the HTML format used for exchanging the documents on the web
The objectives map to the 3 and 7 learning outcomes of the course:
Design, develop and implement basic/intermediate level software applications, and
Use a software development environment to develop and deploy business
applications on the Web.
Internet and the Web
Internet = global networking infrastructure that interconnects various
computers networks
⇒ how does the Internet work towards fulfilling those requests for web ressources
week 4 - Week 4: Web Application Basics — Internet, Web, and HTML 1
, request from device doesn’t go directly to remote computer hosting the web page but to
the Internet Service Provider = a company that provides its customers with access to the
Internet and acts as a Gateaway. The ISP will relay the request to the networl
first the identifier of the requested ressource (e.g www.manchester.ac.uk is translated to a
certain IP address. This address is used by computers to maintain communication
between themselves). This is done by a domain name server (DNS) which effectively
translates the addresses that human prefer to use to IP addresses. The request will then be
transmited to a Network Access Point (NAP) which serves as a traffic echange point and
provides an access to the backbone of the internet
the request may go through several access points until it is relayed to the ISP of the
computer hosting the web ressource. This ISP will then forward the request to that
computer. The remote computer will respond by providing the requested ressource
which will have to be sent all the way back through the network.
Web = Information Sharing Model, that is an information system which
nowadays comprises a wide array of hyperlinked ressources made
accessible via the internet = connecting people, so the web is a part of
the internet
own device runs web browser which is a softare app designed to retrieve web ressources
and displaying them to the user.
the browser on user request loads the desired ressource (e.g a web page = a hypertext doc
that may contain text graphics and other content, and hyperlinks to other sources on the
web)
week 4 - Week 4: Web Application Basics — Internet, Web, and HTML 2
