Sunday, 18 September 2016

Web Development HTML5 & CSS3 Lesson 01


Web Designing
Design is the process of collecting ideas, and aesthetically arranging and implementing them, guided by certain principles for a specific purpose.
Web design is a similar process of creation, with the intention of presenting the content on electronic web pages, which the end-users can access through the internet with the help of a web browser.
Fundamental of internet and www concepts
Web
When large number of computer are interconnected with each other then make a web.
The web is the part of internet consisting of various computer exchanging web pages
World Wide Web (WWW)
The part of internet that stores information in multimedia from that is sound, photos, and video as well as text and make the exchange of information easily.
The number of computer connected to the internet world wide is said to to have topped 82 million in 1996 and is predict to reach 300 million by 2003
How does the www work?
1)      Web information is stored in documents called webpages.
2)      Web pages are files stored on computers called web servers.
3)      Computer reading the web pages are called web clients.
4)      Web clients view the pages with a program called a web browser.
5)      Popular browser are internet explorer, Firefox , Google chrome, etc.
Uniform resource locator (URL).
URL is stand for uniform resource locator. It is also called web site address. URL maybe defined as unique way to access the different services on the internet.
The URL is string and character that point to a specific piece of information anywhere on the web.
A URL consists of
1)      The web protocol
2)      the name of the web server
3)      the directory or folder on that server and
4)      the file within that directory
Example http://www.ptv.net.pk
Web Server
It is the specific type of the software and hardware system that provide services to its client.
A web server is the program that waits for browser to request a web page
Web page (Hypertext Documents)
A web page is the documents on Web consisting of an HTML file. The home page, or welcome page, is the main page or first screen you see when you access a website, website and home page tend to be used interchangeably, although a site may have many pages.
For example http://www.hec.edu.pk/scholarship.html
In the above example hec.edu.pk is website or domain name and scholarship  .html is web page
Website (locations of hyperlinked document)
The places you visit on the web are called websites, and the estimated no of such sites through  out the worlds ranges above 1,250,000. A website is the internet location of a computer or server on which a hyper linked document is stored.
Any person in the world who know the web site address can access it.
For example ptv.net.pk, ptcl.com.pk and vu.edu.pk etc.

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