CST8174_Lecture_13_DVD

CST8174_Lecture_13_DVD - Algonquin College CST8174 CST8174...

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Algonquin College CST8174 CST8174 Computer Technology Basics Optical Advancements
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Algonquin College CST8174 Thursday, May 7, 2009 11 - 2 Optical Advancements At the onset CDs provide an enormous about of data storage for the time They replaced the floppy disk at the main distribution media for software We’re now hitting the point where the capacity of the CD is just not cutting it Some applications are released on six or more CDs The next wave of optical media is the DVD
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Algonquin College CST8174 Thursday, May 7, 2009 11 - 3 DVD Digital Versatile Disc Same size and width as a CD CD format initially designed for audio data DVD designed to store video, programs, as well as audio Allows much greater flexibility and capacity on similar media
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Algonquin College CST8174 Thursday, May 7, 2009 11 - 4 Advancements in DVD Three main technological improvements in the DVD format DVD uses smaller pits that are packed more densely Available in both single-sided and double-sided formats, doubling the recordable area Comes in single-layer and dual-layer formats All formats use UDF for a common file system
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Algonquin College CST8174 Thursday, May 7, 2009 11 - 5 DVD Storage The data tracks are tiny 740 nanometers between tracks One pit 320nm wide 120nm deep
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This test prep was uploaded on 04/17/2008 for the course CST CST8174 taught by Professor Matthewo'meara during the Winter '08 term at Algonquin College.

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CST8174_Lecture_13_DVD - Algonquin College CST8174 CST8174...

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