Thursday 6 October 2016

HTML Basic Examples

HTML Documents
All HTML documents must start with a document type declaration: <!DOCTYPE html>.

The HTML document itself begins with <html> and ends with </html>.

The visible part of the HTML document is between <body> and </body>.

Example
<!DOCTYPE html>
<html>
<body>

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

</body>
</html>

( My First Heading

My first paragraph. )

HTML Headings

HTML headings are defined with the <h1> to <h6> tags.
<h1> defines the most important heading. <h6> defines the least important heading:
Example
<h1>This is heading 1</h1>
<h2>This is heading 2</h2>

<h3>This is heading 3</h3>
HTML Paragraphs

HTML paragraphs are defined with the <p> tag:
Example
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>

HTML Links

HTML links are defined with the <a> tag:
Example
<a href="http://http://krishnakumar71.blogspot.nl/">This is a link</a>
The link's destination is specified in the href attribute.
Attributes are used to provide additional information about HTML elements.


HTML Images

HTML images are defined with the <img> tag.

The source file (src), alternative text (alt), width, and height are provided as attributes:
Example
<img src="flag.jpg" alt="krishnakumar71.blogspot.in" width="104" height="142">
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HTML Editor

Write HTML Using Notepad or TextEdit
Web pages can be created and modified by using professional HTML editors.

However, for learning HTML we recommend a simple text editor like Notepad (PC) or TextEdit (Mac).

We believe using a simple text editor is a good way to learn HTML.

Follow the four steps below to create your first web page with Notepad or TextEdit.
Step 1: Open Notepad (PC)
Windows 8 or later:

Open the Start Screen (the window symbol at the bottom left on your screen). Type Notepad.

Windows 7 or earlier:

Open Start > Programs > Accessories > Notepad

Step 1: Open TextEdit (Mac)
Open Finder > Applications > TextEdit

Also change some preferences to get the application to save files correctly. In Preferences > Format > choose "Plain Text"

Then under "Open and Save", check the box that says "Ignore rich text commands in HTML files".

Then open a new document to place the code.

Step 2: Write Some HTML
Write or copy some HTML into Notepad.

<!DOCTYPE html>
<html>
<body>

<h1>My First Heading</h1>

<p>My first paragraph.</p>

</body>
</html>


Step 3: Save the HTML Page
Save the file on your computer. Select File > Save as in the Notepad menu.

Name the file "index.htm" and set the encoding to UTF-8 (which is the preferred encoding for HTML files).
Step 4: View the HTML Page in Your Browser
Open the saved HTML file in your favorite browser (double click on the file, or right-click - and choose "Open with").

The result will look much like this:
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Friday 9 September 2016

HTML

Example Explained

The <!DOCTYPE html> declaration defines this document to be HTML5
The text between <html> and </html> describes an HTML document
The text between <head> and </head> provides information about the document
The text between <title> and </title> provides a title for the document
The text between <body> and </body> describes the visible page content
The text between <h1> and </h1> describes a heading
The text between <p> and </p> describes a paragraph


Using this description, a web browser will display a document with a heading and a paragraph.
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HTML

A Small HTML Document

Example
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

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

</body>
</html>


Result

My First Heading


My first paragraph.
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HTML

What is HTML?

HTML is a markup language for describing web documents (web pages).
  • HTML stands for Hyper Text Markup Language
  • A markup language is a set of markup tags
  • HTML documents are described by HTML tags
  • Each HTML tag describes different document content
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Sunday 4 September 2016

How E-mail Works?

What is E-mail? 

In its simplest form, e-mail is an electronic message sent from one device to another. While many messages go from computer to computer, e-mail can also be sent and received by mobile phones, PDAs and other portable devices. With e-mail, you can send and receive personal and business-related messages with attachments, such as photos and documents. You can also send music, podcasts, video clips and software programs.

How E-mail Works.

To send e-mail, you need a connection to the Internet and access to a mail server that forwards your mail to its final destination. The standard protocol used for sending Internet e-mail is called SMTP, short for Simple Mail Transfer Protocol. It works in conjunction with POP--Post Office Protocol--servers. Almost all Internet service providers and all major online services offer at least one e-mail address with every account.
When you send an e-mail message, your computer routes it to an SMTP server. The server looks at the e-mail address (similar to the address on an envelope), then forwards it to the recipient's mail server, where it's stored until the addressee retrieves it. You can send e-mail anywhere in the world to anyone who has an e-mail address. In fact astronauts on the international space station use e-mail to keep in touch with their earth-bound colleagues.
At one time, you could only send text messages without attachments via the Internet. With the advent of MIME, which stands for Multipurpose Internet Mail Extension, and other types of encoding schemes, such as UUencode, you can now send formatted documents, photos, audio and video files. Just make sure that the person to whom you send the attachment has the software capable of opening it.
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Friday 8 April 2016

*which type of database used by google?
Bigtable is a distributed storage system for managing structured data that is designed to scale to a very large size. For more information, download the document from here. Google also uses Oracle andMySQL databases for some of their applications.
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