MIA Lecture 1

Internet Overview and WWW

Points to coverInternet, WWW and related termsInternet ServicesWeb BrowsersNavigating the InternetUsing Bookmarks and History ListsSearching information using Search

EnginesDifferent searching strategies

World Wide Web

The Web Browser Explore the Internet Browse the Internet by Using MSIE Bookmark and History List

The Web Browsers

Netscape NavigatorMicrosoft Internet ExplorerNCSA Mosaic

(You may find some emulators athttp://www.dejavu.org )

Netscape Navigator

Menu barURLStatus indicatorWebPages menu barWebPages windowStatus bartoolbar

Web Site and Homepage

The WWW consists of a large number of connected web sites

A web site is a group of connected web pages

The linkage between web pages is known as Hyperlink

The first web page in a web site is known as Homepage

HTML (Hyper-Text Markup Language)

Web pages are written with HTMLFiles written with HTML will be suffixed by .htm or .html

HTTP and FTP HypertextHyper-Text Transfer Protocol (HTTP) is a type of

Protocol Define how messages are formatted and transmitted

between servers and browsers Use http:// to denote a hyper-text interfaced web page

File transmission Protocol (FTP) is another type of protocol For the transmission of files Use ftp:// to denote a FTP interfaced web page The transmission of FTP is faster than HTTP

Use URL (Universal Resource Locator)

ProtocolAddressPathIn the format protocol://address/pathe.g. http://www.netscape.com/netcenter/cool.html?cp=hom12sculpath is not essential

Hyperlink and Hypertext

Hyperlink is the linkage point to another web page

Hypertext is the word(s) which contain the hyperlink

Hypertext will change color after the linked page has been browsed

Shareware and Freeware

Shareware is software that may be downloaded from the internet for trial

User need to pay after the period of trial if he want to continue the usage

Freeware is software that may be downloaded from the internet and is free to use

Browse the Web Site

http://www.vtc.edu.hkhttp://www.cuhk.edu.hkhttp://www.hkbu.edu.hk/index.htmlhttp://www.ied.edu.hkhttp://cwis.polyu.edu.hkhttp://www.oli.hkhttp://www.hku.hk

Close " Netscape”

Select “file”Select “exit”Closing of browser not equal to

disconnecting the network

Using Microsoft IE

Microsoft Internet ExplorerUser interface is similar to that of MS

Office

Use the History List

History list is used to record the browsed web site of the user

For Netscape: Select “Communicator” Select “Tools” Select “History” Double-click the web site

(short-cut : Ctrl+H)

Use the Bookmark (1)

Add bookmark For Netscape: Go to the web page Select “Communicator” Select “Bookmarks” Select “Add Bookmark” The address will be added to the

bookmark

Use the Bookmark (2)

Edit bookmark Select “Communicator” Select “Bookmarks” Select “Edit Bookmarks”

Practical Exercise

Please demonstrate that you are able to browse the homepage of the Hong Kong SAR Government: http://www.info.gov.hk

Then find out what is the current weather or traffic report.

Net Search(REF: Five types of Recommended Search Tools:http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/ToolsTables.html )

Searching the Internet Using Searching Engine Select Searching Area Net Search by Using MSIE

Internet Search EngineNetscapeExcite InfoseekLycosLookSmartNews SearchAlta vistaYahoo!

Searching by Keyword

Start NetscapePress “search”Enter the keyword to be searchedA number of web sites related to the

keyword will be listedSelect any of the sites

Searching by Catalog

Select one search engine and enter the site

Select one of the cataloguesSelect one of the sub-catalogues and

so on

Searching Selected Area

Search by keyword and search by catalogue is done on www

Select particular area to narrow down the area to be searched

Surf and Learn…

The World Wide Web at a Glancehttp://www.learnthenet.com/english/web/000www.htm