Difference between sequential access memory and direct access memory
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Sequential access memory: is a class of data storage device that read stored data in sequence. It is used as secondary storage due to their higher density at lower cost. It also allows the users to communicate with the computer.
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Sequential access memory: is a class of data storage device that read stored data in sequence. It is used as secondary storage due to their higher density at lower cost. It also allows the users to communicate with the computer.
Hope this helps you
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Sequential access must begin at the beginning and access each element in order, one after the other. Direct access allows the access of any element directly by locating it by its index number or address. Arrays allow direct access. Magnetic tape has only sequential access, but CDs had direct access. If you are on a railroad train, to go from one car to another you must use sequential access. But when you board the train initially you have direct access. Direct access is faster than sequential access, but it requires some external mechanism (array index, file byte number, railroad platform)."
Sequential access must begin at the beginning and access each element in order, one after the other. Direct access allows the access of any element directly by locating it by its index number or address. Arrays allow direct access. Magnetic tape has only sequential access, but CDs had direct access. If you are on a railroad train, to go from one car to another you must use sequential access. But when you board the train initially you have direct access. Direct access is faster than sequential access, but it requires some external mechanism (array index, file byte number, railroad platform)."
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