(i) Web 1.0 (Web of Content) is the early web that contained text, images, and hyperlinks and allowed users only to search for information and read it. There was a very little in the way of user interaction or content generation.
(ii) Web 2.0 (Web of Communication) is a read-write web that allowed users to interact with each other.
(iii) Web 3.0 (Web of Context) is termed as the semantic web or executable web with dynamic applications, interactive services, and "machine-to-machine" interaction.

(i) Remix
(ii) Remake
(iii) Remanufacture
(iv) Redistribute
(v) Resell
(vi) Study and Learn

(i) Closed Loop
1. In closed loop cards, money is metaphorically stored on the card in the form of binary-coded data.
2. Closed loop cards are issued by a specific merchant or merchant and can only be used to make purchases from specific place. e.g. chennai metro rail travel card.
(ii) Open loop (multipurpose)
1.Open loop cards can be used to make debit transaction at variety of retailers.
2. It is also called as prepaid-debit cards.
3. It can be used anywhere the branded cards are accepted. e.g. Visa gift cards.

(i) The var_dump( ) function is used to dump information about a variable.
(ii) This function displays structured information such as type and value of the given variable.
(iii) Arrays and objects are explored recursively with values indented to show structure.
Example:
\($\)x = "COMPUTER APPUCATION!";
\($\)x = null;
var dump(\($\)x);
?>
OUTPUT: NULL

(i) DB2
(ii) MySQL
(iii) Oracle
(iv) PostgreSQL
(v) SQLite
(vi) SQL Server
(vii) Sybase

1. Select the Line tool from the toolbox. The cursor changes to a crosshair
2. Click and drag on the screen to draw your line. As you drag, a line appears.
3. Release the mouse button and the line will be drawn and selected, with sizing handles on either end. Resize the line by clicking and dragging the handles, if necessary.

1. Choose File ⟶ Place. The Place dialog box will appear.
2. Locate the document that contains the text you want to place and select it.
3. Click on Open in the Place dialog box. The pointer changes to the loaded text icon.
4. Make a text block to place the text. (Or) Click in the page to place the text. The text will be placed in the page. If the text to be placed is too big to fit on one page, PageMaker allows you to place it on several pages. This can be done manually or automatically.

(i) EDI A is a hierarchical structure where the top level is referred to as an interchange, and lower levels contain multiple messages.
(ii) The messages consist of segments, which in turn consist of composites.
(iii) The final iteration is a data element.

1. Electronic cash is (E-Cash) is a currency that flows in the form of data.
2. It converts the cash value into a series of. encrypted sequence numbers, and uses these serial numbers to represent the market value of various currencies in reality.

1. CVV - Card Verification value
2. CVC - Card Verification code
3. It is a 3 digit code usually printed to the left of signature pane validates the card.

1. Some popular macro on-line payment systems are
2. Card based payment systems
3. Electronic account transfer
4. Electronic cash payment systems
5. Mobile payment systems and internets payment systems

(i) Medical Students practices surgery methods via simulation prior to actual surgery.
(ii) Tiny digital cameras are inserted in human body and it displays the inner scene of the body. Like wise, the medical practioners were able to see the inner part without dissecting it.

A digital signature is a mechanism that is used to verify that a particular digital document, message or transaction is authentic.

(i) Country domain uses 2-character Country abbreviation according to country.
(ii)  For e.g., google.in - for INDIA, Google's for US. Some of the Domain Name and their meaning

PHP write a File:
The fwrite( ) function is used to write to a file.
Syntax:
fwrite(＄myfile, ＄txt);
Example:
< ?php
＄myfile = fopen("new_schooLfile.
txt", "w'')
or die("Unable to open file!'');
＄txt = "School Name\n";
fwrite(＄myfile, ＄txt);
＄txt = "Student Name\n";
fwrite(＄myfile, ＄txt);
fclose(＄myfile);
? >

Validation rules for HTML input field:

(i) Wi-Fi stands for Wireless Fidelity.
(ii) It is a wireless network technology that permits computers and alternative devices to be connected to every alternative into a local area network and to the net without wires and cables .
(iii) Wi-Fi is additionally stated as wireless local area network that stands for wireless local area network, and 802.11, that is that the technical code for the protocol.

1. Sharing of company policies/rules and regulations
2. Access employee database
3. Distribution of circulars/ Office Orders
4. Access product and customer data
5. Sharing of information of common interest
6. Launching of personal departmental home pages
7. Submission of reports
8. Corporate telephone directories.

< ?php
＄x = 1;
while(＄x < = 10)
{
echo sx:
＄x++;
}
? >

(i) Using computer network, application or other software will be stored at central computer or server and share one software from one to another is called Data Sharing.
(ii) For example: All files cannot be taken backup or duplicate on more than one computer. So if one is not unavailable due to hardware failure or any other reason, the copies can be used.

(i) E-Banking plays an important role in our day today life, via Internet it can be accessed anytime, anywhere 24/7.
(ii) The speed and efficiency was very much better than that of done by counter at bank.
(iii) Owaday's online payment were done via Internet to avoid standing in the queue at office to paybills with very low transaction fees.

< ?php
＄x = -12;
if (＄x > 0)
{
echo "The number is positive";
}
else{
echo "The number is negative";
}
? >

(i) The mysqll_connect function uses these variables and connect Database server from PHP scripting.
 (ii) If connection gets fail, output will be printed with MySQL error code. Otherwise connection is success.