How does a smooth little piece of plastic hold possibly like 150gb, it’s not like a hard drive or usb, it’s just a piece of plastic right?
In: Technology
Nope, it’s two smooth pieces of plastic with a layer of super-thin aluminum between them. This aluminum has “holes” punched into it, so that it either reflects light (no hole) or it doesn’t reflect light (“hole”). This lets the disc encode 0 and 1 binary bits in the series of holes/not-holes.
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