Karbosguide.com - Module 4c4

The future of optical medias


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  • HD-ROM
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  • HD-ROM

    Futuristic technology. The well known optical drive types function using a laser beam. Norsam Technology has developed another technology where the controlling beam is made of charged gallium ion particles. This gives a very high density, since the beam is very narrow. The new drive technology is called HD-ROM.

    Media Beam, width Capacity per disk
    CD-ROM 800 nano meter 0.65 GB
    DVD 350 nano meter 4.7 GB
    HD-ROM 50 nano meter 165 GB


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    Learn more

    Module 4d about MO drives.

    Please read Module 4e about tape streamers (they are not drives).

    Please read Module 5c about SCSI.

    Please read Module 6a about file systems.

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