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Technology Computing, programming, science, electronics, telecommunications, etc. |
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#1 |
Radical Centrist
Join Date: Jan 2001
Location: Cottage of Prussia
Posts: 31,423
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I think high-quality wire recorders were developed in Germany in order to record Hitler's speeches.
Interesting: recording tape, cassette, 8-track, reel-to-reel is just oxides of that same metal of that recording wire, magnetized and read by a head. It's just applied in a thin layer onto a long plastic tape and magnetized and read by a head. AND videotape is just oxides of that same metal, applied to a thicker plastic tape and magnetized and read by a head. AND floppy discs are just oxides of that same metal, applied to a plastic disk and magnetized and read by a head. AND hard drives are just oxides of that same metal, applied to a firm, spinning disk and magnetized and read by a head. Only when we got to optical disk was it no longer a magnetized surface read by a head. Then, it became pits in metal, read by a laser. And that's where the story ends, because in the future, everything digital will be kept in solid state memory. |
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#2 | |
Read? I only know how to write.
Join Date: Jan 2001
Posts: 11,933
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Quote:
We know optical is today where magnetics probably were in the 1960s. So what is about to make optical devices obsolete? Numerous technologies exist including and not limited to phase change materials and quantum dots. All based in sub-atomic structures. Semiconductor memory is layers of atomic structures. Too obsolete. |
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