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
* It’s a piece of plastic with tiny holes etched into it and backed by some reflective paint.
* A laser hits the bottom of the disk and is reflected one way when it hits a smooth part and a different way when it hits one of those holes.
* Smooth versus holes can be encoded as binary data.
* And binary data can represent anything.
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