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分析了光存储在信息技术发展中的重要性。介绍了光存储的原理，比较了磁存储和光存储的特点。介绍了光盘存储技术的发展趋势。
The importance of optical storage in the development of information technology is analyzed. The principle of optical storage is introduced, and the characteristics of magnetic storage and optical storage are compared. The development trend of optical disc storage technology is introduced.