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Question

Serial access memories are useful in applications where ___________________.

A
Data consists of numbers
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B
Short access time is required
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C
Each stored word is processed differently
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D
Data naturally needs to flow in and out in serial form
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Solution

The correct option is D Data naturally needs to flow in and out in serial form

Serial access memories are useful in applications where Data naturally needs to flow in and out in serial form.

In computing, sequential access memory (SAM) is a class of data storage devices that read stored data in a sequence. This is in contrast to random access memory (RAM) where data can be accessed in any order. Sequential access devices are usually a form of magnetic storage or optical storage.

Serial access is where data records are stored one after the other with no regard to the order. This is usually an unprocessed file. Serial files are read by starting at the beginning and reading through every record until you find the one that you want. ... Magnetic Tape and disks can be used to store serial files.

In computer science, sequential access means that a group of elements (such as data in a memory array or a disk file or on magnetic tape data storage) is accessed in a predetermined, ordered sequence. Sequential access is sometimes the only way of accessing the data, for example if it is on a tape.


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