Three types of storage media are magnetic, optical and solid state. (ii) Optical storage uses a laser to store and read data from a disk. Explain how the laser is used to store and read data from the disk.
Explanation
The laser is used to store data by burning pits on the disk, which represent the 0s and 1s of binary data. When reading data, the laser detects the pits and converts them back into binary data.
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