Computer Science for IGCSE & O level - Data Representation (Section 12 - No. 34)
What is the main difference between lossy and lossless compression?
Lossy compression reduces file size by discarding data; lossless compression does not.
Lossy compression results in better image quality; lossless does not.
Lossy compression is faster than lossless compression.
Lossless compression can only be used on images.
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The key difference is that lossy compression can remove data, while lossless doesn't.