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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.
Java bean is a reusable component, where as the servlet is the java program which extends the server capability.
As in PRAM there was not any direct communication medium between processors so a different model called as interconnection networks have been considered. In the interconnection net
deque insertion and deletion ..
The number of control lines for 32 to 1 multiplexer is ? Ans. For 32 (2 5 ) the number of control lines and to select one i/p between them total 5 select lines are needed.
the c code for hypothetical reliable data transfer protocol
What is SEGMENT - Assembler directives SEGMENT: This directive defines to assembler the start of a segment with name segment-name. Segment name must be unique and follows the
Explain the need for user-defined functions. The need for user-defined function: 1. A programmer might be having a block of code that he has repeated forty times all over t
Write the expression for Boolean function for F (A, B, C) = ∑m (1,4,5,6,7) in standard POS form. Ans: f (A,B,C )= ΣM (1,4,5,6,7) in standard POS
What is an algorithm The solution to any problem that is stated by an exact number of well-defined procedural steps is known as an algorithm.
What are the Barcode readers These collect data from printed barcodes and allow automatic stock control in, for illustration, supermarkets.
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