Seminar Topics - Electrical - Electronics - Mechanical - Civil - Chemical - Computer - Automobile | |||||||||||||||||||||||||
SEMINAR TOPICSNEW ENGINEERING SEMINAR TOPICS WITH ABSTRACTS | |||||||||||||||||||||||||
|
Bluetooth™ Wireless Technology A Blu-ray Disc (BD) is a next - generation optical disc format meant for high-definition video and data. The Blu-ray standard was jointly developed by a group of consumer electronics and PC companies called the Blu-ray Disc Association (BDA), spearheading by Sony. It is currently competing with wide adoption as the preferred next generation optical standard, similar to the battle between consumer videotape formats with VHS gaining supremacy in the end. The name Blu-ray is derived from the blue-violet laser it uses to read and write to the chalcogenide disc. A Blu-ray Disc can store substantially more data than a DVD. because of the shorter wavelength (405 nm) of the blue-violet laser (DVDs use a 650 nm wavelength red laser and CDs an infrared 780 nm laser), which allows more information to be stored digitally in the same amount of space. In comparison to HD DVD, which also uses a blue laser, Blu-ray has more information capacity per layer (25 gigabytes instead of 15) but may initially be more expensive to produce. | ||||||||||||||||||||||||
| FIND YOUR JOB IN INDIA |
| ||||||||||||||||||||||||
|
|
| |||||||||||||||||||||||
