Web topic 1 internet
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Web Authoring IT2031PA tec in Social Media & Web Development
Transcript of Web topic 1 internet
Web AuthoringIT2031PA
Nitec in Social Media & Web Development
Aim of the Module
At the of the module, you will be able to create and design a website.
Module Structure
1. There will be a theory exams at the end of this module.
2. There will be 1 practical test and 1 theory test for this module.
3. Two assignments are graded and will contribute to your final Module Grade.
4. There will be a project to be submitted.
Ground Rules
1. Do be punctual for class.
2. Do NOT litter or leave your rubbish behind.
3. Do submit your assignments on time.
Web Authoring
Topic 1 –Characteristics of the Internet
IT2031PA
Nitec in Social Media & Web Development
Objectives
1. Explain the characteristics of internet
2. List internet terminology
Students should able to:
4. Describe the process of installing, configuring and use web browser
3. Explain n-tier architecture
History of Internet
http://www.youtube.com/watch?v=a2ElEXOSrA0&feature=related
What is the Internet?
The internet is a global system of interconnected computer networks.
The internet uses a set of protocol called the TCP/IP.
What is the Internet?
World Wide Web
Commonly known as the www or the web.
It is a service provided by the internet.
Its outstanding feature is Hypertext link.
An example of hypertext is http://www.yahoo.com.sg/
Connecting to the Internet
Subscribe to an Internet Service Provider (ISP)
Examples of local ISP are- Starhub- M1- SingNet- SuperInternet
Internet Addressing
Every computer has an IP (Internet Protocol) Address.
It is used to locate another computer in the Internet.
An example of an IP version 4 address is 192.168.0.3
Internet Addressing (Activity)
Open up your internet browser.
At the URL box, key in192.150.8.53
Now key in www.adobe.com
Domain Name System (DNS)
The IP Address 192.150.8.53 is difficult to remember.
Domain Name System translate the IP address to meaningful names like www.adobe.com
Domain Name System (DNS)
www.adobe.com
Domain name Domain type
Internet address based on DNS has 2 parts, host name and domain name.
Common Terms
Web page – A document on the web
Web site – A collection of web pages
Uniform Resource Locator (URL) – The address of a web page
Common Terms
Web server – A computer program that is responsible for getting the web pages a user requested
Examples of web servers are :- Apache- Sun Microsystems- Internet Information Systems
Common TermsWeb client – Basically, its your web browser. Its a computer program with 3 main functions :
- sending requests to server,
- receiving response from server and
- displaying received documents
Common Terms
HTTP – HyperText Transfer Protocol is the set of rules for exchanging files on the WWW
FTP – File Transfer Protocol is the set of rules to exchange files between computers in the internet.
Structure of the Internet
There are 3 main components in the Internet Structure :
web server, web client, data base
Server-Client Model
Web Client
Database
Web/Application Server
Request
Response
3-Tier Architecture
Presentation - Client
- It is the computer with web browser from which you view your web pages.
3-Tier Architecture
Business Logic - Server
- It receives and process requests from client for a particular URL. Can be Web (IIS) or Application (Web logic)
3-Tier Architecture
Data Access - Database
- Stores information Eg Access, SQL Server 2000 etc
Internet Explained
http://www.youtube.com/watch?v=qv0XCaUkfNk
Benefits of the Internet
1. A global resource library.
2. Enable ease of communication
3. A business Tool
Web Browsers
Some of the most popular web browsers :
- Internet Explorer- Firefox- Chrome
Search Engines
Some effective techniques while doing online search.
Use boolean operatorsAND +OR |
NOT -
Australia -flood
Search Engines
Use “ ” to define a phrase to be treated as one whole keyword in the search engine
"tan woon bee"
Quiz
1. Given the URL below, identify which part is the host name, domain name, domain type and country code.
ftp.example.org.au
Domain name
Domaintype
Host name
CountryCode
