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Data or music at the lowest level can all be represented by bits.Bits are either 0 or 1. The 0 bit is represented by burning a pit on the CD surface using a laser. The information on a standard CD is encoded as a spiral track of pits moulded into the top of the polycarbonate layer.The areas between pits are known as lands (1 bit). Each pit is approximately 100 nm deep by 500 nm wide, To grasp the scale of the pits and land of a CD, if the disc is enlarged to the size of a stadium, a pit would be approximately the size of a grain of sand. The spiral begins at the center of the disc and proceeds outwards to the edge, which allows the different size formats available. If you find this info useul Please vote!!!

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A CD-ROM is a compact disk that?

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It was to listen to music and now other things.


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a compact disk does not belong to the computer maybe your thinking about the compact disk drive. a compact disk is just a CD-ROM.


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