cs sem.pptx
- 2. WWW (World Wide Web) The world wide web is a set of protocol that allows you to access any document on the net through a naming system based on URL. WWW also specifies a way the hypertext transfer protocol (HTTP) to request and send a doc over the internet. With these standard protocols in place, one can set up a server and construct hypertext docs with links in them that point to the docs on the server.
- 3. WWW ATTRIBUTES • Works easily with most Internet Browsers. • Allows to create, link or display multimedia web pages. • Supports hypertext files and hyperlinks and frames. • Provide interactivity between users and services.
- 4. Web Browser & Web Server A web browser is a www client that navigates through the www and display a web page. A web server is a www server the responds to the requests made by the web browser.
- 5. Web Sites, Web Addresses And Web Pages. A location on a net server is called a website. Each website has a unique address called the web address. The documents inside the websites are called a webpage.
- 6. URL and domain names. URL stands for Universal Resource Locater. URL specifies the distinct address for each resource on the internet such as ftp, https etc. URL looks like this: type://address/path. Type: specifies the type of the server in which file is located. Address: address of the server. Path: location of the file on the server. An internet address which is character based is called a domain name, such as com, org etc.
- 7. Web Hosting. Web hosting is a means of hosting web server application on a computer system by using web hosting electronic content on the internet that is readily available to any web browsing client. The computer system providing the web hosting is known as web server or the web host. Web browsing can be classified into following 4 categories: 1. Free hosting: available with many free sites for free of cost. 2. Virtual or shared: here one’s website domain is hosted on the web server of hosting company along with other web sites. 3. Dedicated hosting: here the company wishing to go online, rents an entire web from hosting company. This is suitable for large, high traffic sites. 4. Co-location hosting: here the company owning the site instead of web hosting company. Suitable for those who need the ability to make changes.
- 8. HTML HTML stands for Hyper Text Markup Language. It is used to design the layout of a doc and to specify the hyperlinks. Tell the browser how to display text, pictures and other supported media. It supports multimedia and new page layout features. Provides may tags for controlling the presentation of info on the webpages such as <body>,<li>,<hr> etc.
- 9. XML XML stands for eXtensible Markup Language. A markup language is a mechanism to identify structure in a doc. XML defines a standard way to add markup to documents. Provides and ability to define tags and the structural relationship between them. All of the semantics of an XML doc will either be defined by application the process them or by style sheets