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In order to use Bluetooth wireless technology, a device must be able to interpret certain Bluetooth profiles. The profiles define the possible applications. Bluetooth profiles are general behaviors through which Bluetooth enabled devices communicate with other devices. Bluetooth technology defines a wide range of profiles that describe many different types of use cases. A2DP,AVCTP,AVDTP and AVRCP are Bluetooth protocol stack used by the profile. Advanced Audio Distribution Profile (A2DP) ;A2DP describes how stereo quality audio can be streamed from a media source to a sink. The profile defines two roles of an audio source and sink. A typical usage scenario can be considered as the “walkman” class of media player. The audio source would be the music player and the audio sink is the wireless headset. A2DP defines the protocols and procedures that realize distribution of audio content of high-quality in mono or stereo on ACL channels. The term “advanced audio”, therefore, should be distin...
User-Generated Content or UGC refers to the online content like digital video, blogging, podcasting and mobile phone photography produced by netizens (online community) like me rather than publishers and TV producers. UGC has seen a phenomenal growth in the last two years and I see this growth continuing in the coming years. UGC is also part of the phenomena called social networking, as most of the time this user generated content is meant for a particular social group and thus advancing their networking. Wikipedia which is the free encyclopedia started by Jimmy Wales in March 2000, was the first attempt to tap the huge potential of the user generated content. Today I believe it is the most widely used encyclopedia site and all its content is generated/edited by netizens . Jimmy the noble man he is, did not try to profit from this and Wikipedia remains a non-profit effort. But others who followed him like Flickr , YouTube , MySpace , Facebook , and Second Life are making big buc...
MS Windows 7, the next major release of the world's most popular operating system, goes public in trial form in the next week. A test version of Windows 7 will be available to developers from Thursday, while the public can try it out from 5 May. Microsoft is hoping it can avoid the negative press that surrounded the launch of Vista, the last major Windows release, almost three years ago. Windows 7 has been designed to be compatible with Vista so users do not have to invest in new hardware. A commercial release of Windows 7 is expected in the next nine months. Microsoft is hoping it can avoid the negative press that surrounded the launch of Vista, the last major Windows release, almost three years ago. Windows 7 has been designed to be compatible with Vista so users do not have to invest in new hardware. A commercial release of Windows 7 is expected in the next nine months. Windows 7 promises a major usability improvement on Vista, and a simplification of security measures which cau...
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