Which technology is used in Compact disks?

Options:  Mechanical B.  Electrical C.  Electro Magnetic D.  Laser

Ans:– D ,

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A disk storage medium in the form of an assembly containing a single rigid magnetic disk permenently is
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How many types of flow are there in a semiconductor?
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Which of the following is an essential file of a MS-DOS boot disk?


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Ans:7 – b ,7 – b

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The Newell and Simon program that proved theorems of Principia Mathematica was:
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What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm?
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