What are IPv4 and IPv6??//..

What is Internet Protocol(IP)?
Internet Protocol is a set of technical rules that defines how computers communicate over a network.

There arecurrently two versions: IP version 4 (IPv4) and IP version 6 (IPv6).

What is IPv4?
IPv4 was the first version of Internet Protocol to be widely used, and accounts for most of today’s Internet traffic. There are just over 4 billion IPv4 addresses.
While that is a lot of IP addresses, it is not enough to last forever.

What is IPv6?
IPv6 is a newer numbering system that provides a much larger address pool than IPv4, amongst other features.

It was deployed in 1999 and should meet the world’s IP addressing needs well into
the future.
 

What are the major differences?
The major difference between IPv4 and IPv6 is the number of IP addresses.
There are 4,294,967,296 IPv4 addresses.

In contrast, there are 340,282,366,920,938,463,463,374,607,431,768,211,456 IPv6 addresses.
The technical functioning of the Internet remains the same with both versions and it is likely that both versions will continue to operate simultaneously on networks well into the future.

To date, most networks that use IPv6 support both IPv4 and IPv6 addresses in their
networks.

WAP sites & WEB sites

The website and wap is some what different to each other as
1) website is for viewing pages[internet] in computer (desktop,laptop)
2) and wapsite is for viewing pages[internet] in handled devices (smartphones,cellphones)

A wap site address is written slightly differently to a website address. Once typed in or clicked on, you can view wap sites on mobile devices, phones and PDAs. Wap sites use text instead of graphics, making it easier to read information on your wap phone. A website address can be written like this: http://www.daydr3am3r.tk and a wap site address like this: http://daydr3am3r.multimedia 

WAP (wireless application protocol) websites are designed for access by small mobile devices. The smaller screen sizes of these devices sometimes make it inconvenient to display large websites. By minimizing content, especially large graphic objects, a WAP website is more easily navigated by mobile visitors. WAP sites are designed using the wireless markup language (WML), which is derived from HTML. Those already familiar with HTML will have no trouble developing a WAP site. However, WML is more strict than HTML as it follows the XML standard. Whereas HTML is more forgiving when programming code does not contain the proper syntax, WML will instead not load the page. With attention to this and a few other unique WML characteristics, it is possible to build a WAP page fairly easily.