Consider a file system on a disk that has both logical and physical block sizes  of 512 bytes. Assume that the information about each file is already in memory. For each of the three  allocation strategies (contiguous, linked, and indexed), answer the following question: If we are  currently at logical block 10 (the last block accessed was block 10) and want to access logical block 4,  how many physical blocks must be read from the disk?

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Fundamentals of memory

A collection of connected storage devices form the memory unit. It is a space to store data and instructions required for processing. Information is stored in a memory unit in the form of bits. There are two types of memory namely: