Optical Media: How does a CD drive work?

Description

This is the 3d model used for the youtube video that explains how optical media devices such as cd drives work: http://youtu.be/-ynJXHPzioA

It's designed for GCSE Computer Science students at Manor CE Academy in York.

Comments (1)

D
donorclay almost 11 years ago

This is a very informative video! My fiance and I were only recently marveling at compact disks and wondering how it worked. We understood binary and such. I was pretty correct in my guesses though I had thought that both the 1 and 0 both reflected into the sensor, only in different ways. It is much simpler this way because it only requires one light sensor. Am I correct in assuming that the sensor is merely a photocell?

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