This version is popularly known as ipv6 internet

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Unformatted text preview: ranges from 64 Kbytes to 2 Mbytes. Many vendors achieve these small sizes by providing simplified interfaces and by eliminating much of the desktop browser's multimedia functionality such as streaming-audio and -video support. Microbrowsers take one of the following two general approaches to accessing web data: 1. Direct Access Approach. The microbrowsers based on this approach use an HTML-based language, such as compact HTML and XHTML. Compact HTML, an HTML subset, works with small devices' resource limitations by not supporting, for example, JPEG images, tables, multiple fonts, or more than two colors. XHTML is basically HTML reformulated as an XML application. XHTML lets a small device access just a subset of a web page for easier downloading and display. As shown in Figure 18.5(a), in case of microbrowsers that use this approach, clients get data directly from a web server without any intervention. However, this approach is limited by the server's ability to send information in HTML. A few microbrowsers that use this approach are Microsoft's Mobile Explorer, the Opera browser, and Pumatech's Browse-it. 2. WAP Gateway Approach. The microbrowers based on this approach use WAP's Wireless Markup Language (WML). As shown in Figure 18.5(b), in this approach a content-adaptation server, known as WAP gateway, is used. The data downloaded from a web server first goes to the WAP gateway. The WAP gateway translates the web content written in HTML or other languages into WAP' WML. Thus the WAP gateway, which acts as a proxy, translates and formats the web content i WML for the target hand-held device. A few microbrowsers that use this approach are Neomar Microbrowser and the Openwave Mobil Browser. Next Generation Internet Protocol (IPV6) The Internet connects together several hundred thousands of networks, and several tens of millions of computers. Several millions of users access the Internet from over more than hundred countries. The size of the Internet over the last few years has grown and continues to grow exponent...
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