Posted inMobile Computing
MAC Protocols
The Medium Access Control (MAC) protocol is used to provide the data link layer of the Ethernet LAN system. The MAC protocol encapsulates a SDU (payload data) by adding a…
Posted inMobile Computing
Spread Spectrum
Spread Spectrum : Introduction When transmitted signals of certain frequencies are varied slightly in order to obtain greater bandwidth as compared to initial bandwidth is known as Spread Spectrum. Spread…
Posted inMobile Computing
Multiplexing in Mobile Computing
Multiplexing : Introduction Multiplexing is a technique in which, multiple simultaneous analog or digital signals are transmitted across a single data link. The concept behind it is very simple: Proper Resource…
Posted inMobile Computing
Communication Technologies
Since the introduction of first commercial mobile phone in 1983 by Motorola, mobile technology has come a long way. Be it technology, protocols, services offered or speed, the changes in…
Posted inInternet Programming
What is SOAP?
SOAP is an acronym for Simple Object Access Protocol. It is an XML-based messaging protocol for exchanging information among computers. SOAP is an application of the XML specification. Points to…
Posted inInternet Programming
WSDL
WSDL stands for Web Services Description Language. It is the standard format for describing a web service. WSDL was developed jointly by Microsoft and IBM. Features of WSDL · WSDL is…
Posted inInternet Programming
Web Services – Characteristics
Web services have the following special behavioral characteristics − XML-Based Web services use XML at data representation and data transportation layers. Using XML eliminates any networking, operating system, or platform…
Posted inInternet Programming
What are Web Services?
Different books and different organizations provide different definitions to Web Services. Some of them are listed here. · A web service is any piece of software that makes itself available over…
Posted inInternet Programming
AJAX – XMLHttpRequest
The XMLHttpRequest object is the key to AJAX. It has been available ever since Internet Explorer 5.5 was released in July 2000, but was not fully discovered until AJAX and…
Posted inInternet Programming
What is AJAX?
AJAX stands for Asynchronous JavaScript and XML. AJAX is a new technique for creating better, faster, and more interactive web applications with the help of XML, HTML, CSS, and Java Script. · Ajax uses…