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Explain the purpose of interleave?

Answer:

★ Interleave is the process through which gaps are placed between two sectors on the platter of a disk.
★ This was done in earlier days when the computers were not quick enough to read continuous streams of data.
★ Without interleaving there would be no gaps between the sectors and data would arrive immediately before the reading unit is ready. Due to this to read the same data a complete rotation of the disk would be required again.
★ The interleaving ratio was not fixed and can be set by the end user depending on their system specs. Nowadays the ratio of interleaving is 1:1 i.e. no interleaving is used.

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