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UNIT 14

UNIT 14. Websites. Introduction. Introduction. A website is a set of related webpages stored on a web server. Webmaster: is a person who sets up and maintains a website. Hyperlinked documents in a web network system. A server computer that stores and provides access to webpages .

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UNIT 14

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  1. UNIT 14 Websites

  2. Introduction

  3. Introduction • A website is a set of related webpagesstored on a web server. • Webmaster: is a person who sets up and maintains a website. Hyperlinked documents in a web network system A server computer that stores and provides access to webpages.

  4. Good Website Design • The design of websites varies greatly and some are more successful than others. • Features of a good website: • Good webpage design. • Website ease of use. • Accurate and up to date data provided on the website. • Good use of graphics on the webpages.

  5. Good Website Design • Website compatibility with different types of web browser programs. It must use webpage features that are standard and can be displayed on any browser program. • A good navigation system ( a way of allowing visitors to move from webpage to webpage and find their way around your website).

  6. Good Website Design Navigation features include: • Using text hyperlinks, rather than graphical buttons or image maps (graphical images that provide links to different webpages depending on where on the image the user clicks) .

  7. Good Website Design • Providing descriptive text captions for any graphics. These alternative text captions are known as ALT text captions. Disable image with using ALT text caption Without an alt text an image will be displayed as an empty icon

  8. Good Website Design • Providing a site map (a webpage that gives an overview to the website with links to various related pages grouped together). - FAQ are the common name for frequently asked questions about the website.

  9. Good Website Design • Avoiding frames which are a way of dividing the browser screen into separate windows, each with its own scrollbar for moving up or down through the text. Frames allow webpages to be displayed inside other webpages. • Keeping the website consistent by not changing the location of the navigation elements and not using links and buttons that appear and disappear.

  10. Good Website Design • Making it easy to reach any particular content on the website. • Providing multiple paths through a website by using logical, clearly placed links rather than using a search engine function where the user has to type in keywords to find data. Words used to categorize documents or records in a file. A program designed to find information according to data entered by the user.

  11. Good Website Design • Not giving website visitors an overwhelming number of links to follow.

  12. ISP • An ISP is an organization that normally charge a fee to provide the sever computers, Internet services and Internet connections for users. • Factors for choosing an ISP: • High speed. • The slowest, dial-up connections use devices called modems to connect to ordinary telephone lines. The modems convert the digital data signals to voice signals. • Faster connections are referred to as broadbandthey use special digital connection (DSL)

  13. ISP • High usage allowance. There is usually a limit on the amount of data that a user can transfer (i.e. sending and receiving emails, web pages, pictures, music , .. etc) in a given time period. • Good value packages. Accounts are often sold as packages where the user pays different prices depending on what available options are chosen.

  14. ISP • CD-ROM or online access. You can install the ISPs software from the Internet or from a CD-ROM you get from the ISP. • Local call rates and national call rates. • Junk mail filtering and virus checking. Spam (unsolicited email) can be removed by filtering programs.

  15. ISP • Free web space. Most ISPs provide storage space for users on a Web server computer where the users can set up their own websites. • Customer support. Most ISPs provide a help service that enables customers to obtain help for common computing problems.

  16. ISP • Reliable service. • The users rely entirely on the ISPs to provide their Internet connection. • Some ISPs are better than others at maintaining their systems and providing a connection that is fast enough.

  17. ISP • Web-based and POP3 email. • ISPs often provide free email facilities. • This may be in the form of Web-based email that uses a browser program to access the email. • OrPOP3 email that uses special POP3 email client programsfor copying email messages onto the users computer and allow the user to read and send messages through an email server computer.

  18. ISP • Initial set-up fee. Although the ISP may not normally charge for providing the internet connection, they sometimes make a small charge for first setting up the connection. • Access to newsgroups Most ISPs provide access to internet Usenet service that allows users to subscribe to discussion groups, known as newsgroups,that discuss particular topics, using text messages that can be accessed by all members of the group.

  19. ISP • Multiple ISP accounts. A username and password( a secret code used to control access to a network system) is required to access a user’s own storage areas and service on the ISP’s server computer. • Some ISPs provide more than one such account to a user enabling the same system to be used by different members of the family or for one user to keep business and personal data completely separate.

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