Mobile Internet and WAP

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Presentation transcript:

Mobile Internet and WAP

Topics to be covered WWW Programming Model WAP Programming Model WAP Gateway

WWW Programming Model

WWW Programming Model Standard Naming model: Content types: Languages: URL Content types: Specific Types like jpg Languages: Scripts: Client Side or Server Side Standard Protocols: HTTP, TCP/IP

WAP Programming Model Wireless Application Protocol Open and Global specification An application communication protocol Used to access services and information Designed for micro browsers Uses mark-up language WML (not HTML) defined as an XML application OS independent

WAP Programming Model

WAP Programming Model Similar to WWW but needs enhancements Slow CPU Low Bandwidth Less memory and small screen size High Latency Current Version : WAP 2.0

WAP Protocol Stack

WAP Protocol Stack WAE includes a micro-browser which provides WML WML script WTA Content formats WML : Tag language, allows text portion of Web Pages to be presented on cellular phone/PDA

WAP GateWay Three kind of servers: Duties Origin Server Proxy Server Header Translation Push Operation Content Compilation

Wap GateWay