Tuesday, 15 November 2011

WE CONTINUE TO THE NEXT TOPIC WHICH IS HTML

-
HTML
Question arise what is this?????

H-Hyper
T-text
M-Markup
L- Language
 
Here was the answer......please read k.

  DEFINISI

What is HTML?

HTML is a language for describing web pages.
  • HTML stands for Hyper Text Markup Language
  • HTML is not a programming language, it is a markup language
  • A markup language is a set of markup tags
  • HTML uses markup tags to describe web pages 

HTML Tags

HTML markup tags are usually called HTML tags
  • HTML tags are keywords surrounded by angle brackets like <html>
  • HTML tags normally come in pairs like <b> and </b>
  • The first tag in a pair is the start tag, the second tag is the end tag
  • Start and end tags are also called opening tags and closing tags 

  

HTML Documents = Web Pages

  • HTML documents describe web pages
  • HTML documents contain HTML tags and plain text
  • HTML documents are also called web pages
The purpose of a web browser (like Internet Explorer or Firefox) is to read HTML documents and display them as web pages. The browser does not display the HTML tags, but uses the tags to interpret the content of the page:

<html>
<body>
<h1>My First Heading</h1>
<p>My first paragraph.</p>
</body>
</html>

Example Explained

  • The text between <html> and </html> describes the web page
  • The text between <body> and </body> is the visible page content
  • The text between <h1> and </h1> is displayed as a heading
  • The text between <p> and </p> is displayed as a paragraph 

 
    apa itu URL ?

URL merupakan satu perkataan lain bagi alamat WEB
URL boleh di hasilkan dengan menggunakan perkataan seperti "w3school.com", atau menggunakan IP (internet protokol) address:192.68.20.50. Namun pada kebiasaanya ramai pengguna menggunakan nama ketika melayari WEB. Ia mudah berbanding dengan penggunaan nombor.

Format : protocol://user:password@server:port/path/document [#reference |?query]

p/s: tidak semua bahagian diperlukan

contoh : 
file     file://server/path/document
ftp     ftp://user:password@server/path/document



Bagaimana HTTP Protokol Berfungsi?

H-hyperText Transfer Protocol
merupakan satu protokol aras aplikasi yang digunakan untuk memindahkan data pada WEB.
HTTP terdiri daripada beberapa syarat yang mana  membolehkan web browser dan server  bertukar-tukar maklumat.

contoh, cara HTTP berkerja :
client (web browser) menghantar permintaan (HEAD,GET,PUT)
sever akan membalas dengan respon code (3 digit),respon text (string), document ( bergantung pada kod). client kemudian akan mempamerkan dokumen ataupun error kepada pengguna.