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Q. Diffrence between CD-R vs CD RW?
A CD-R disc looks same as a CD. Though all pressed CDs are silver, CD-R discs are gold or silver on their label side and a deep cyan or green on recordable side. Silver/cyan CD-Rs were created since green dye used in original CD-R doesn't reflect shorter-wavelength red lasers used in new DVD drives. Cyan dye employed in CD-R will enable complete compatibility with DVD drives. CD-R disc has four layers in place of three for a CD. At the lowest level laser light suffices to detect absence or presence of pits or marks on recording surface to read the disc. At the higher level it can in fact burn marks in the surface.
CD-RW is relatively new technology however it has been gaining market share quite rapidly. The drives cost little more than CD-R drives since they can be used to play audio CDs and CD-ROMs as well as playing and recording CD-RW discs. A CD-RW disc comprises two more layers than a CD-R. The difference is the recordable layer is made of a special material, an alloy of several metals.
Iomega Corporation has announced a CD-RW drive, the Iomega 48*24*48 USB 2.0 external CD-RW drive. These drive features buffers under run protection that list user's record safely even whilst multitasking. It provides plug-&-play capability with Microsoft Windows and Mac OS operating systems and its digital audio extraction rate (DAE) of 48x permits users to rep or burn a 60-min CD in fewer than 3 min while maximum drive speed is obtainable only with hi-speed USB 2.0 connections.
a) Write the main differences among prototyping and incremental development. b) Explain the commonality and main differences among agile approach and RUP.
Q. Approaches for development of information systems? Numerous approaches are available for development of Information Systems. They are as below: • Model Driven: It put e
DeMorgan's first theorem shows the equivalence of which logic gate ? Ans. DeMorgan's first theorem depicts the equivalence of NOR gate and Bubbled AND gate. For De Morgan's
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When should I use server session pools and connection consumers? Ans) WebLogic JMS executes an optional JMS facility for defining a server-managed pool of server sessions. This
What are the types of convergences? Three different types of convergences are: a. The convergence of wireless and e-commerce technology b. The Convergence of E-Commerce a
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What are the steps in executing the program? 1.Fetch 2.Decode 3.Execute 4.Store
We use VuGen to make a Vuser script by recording a user performing typical business processes on a customer application. VuGen makes the script by recording the activity among the
Your professor wants you to fill a two-dimensional N by N matrix with some numbers by following a specific pattern. According to his explanation as in the figure below, you have to
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