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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.
LoadRunner works by making virtual users who take the place of real users operating client software, such as sending requests using the HTTP protocol to IIS or Apache web servers.
A sorting algorithm is stable if Preserves the original order of records with equivalent keys.
Translator for low level programming language were termed as? Ans. Translator for low level programming language is called as Assembler.
What is Operational Research?
2. Explain any ten CASE tools
What are the two independent mechanisms for controlling interrupt request? At the device end, an interrupt enable bit in a control register verifies whether the device is permi
How many responses does a computer expect to receive when it broadcast an ARP request? Why? An ARP (Address Resolution Protocol) request message is put in a hardware frame and
E-brokerage. An e-brokerage is an investment house that permits you to buy and sell stocks and get investment information from its Web site.
Define the role of organizationin computer architecture The organization is the set of resources that realizes the architecture which include the CPU, the memory and I/O contro
Given the subsequent FIFO and rules, how deep does the FIFO require to be to stop underflow or overflow? RULES: a. frequency(clk_A) = frequency(clk_B) / 4 b. per
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