Question

Difference between sequential memory and random access memory

Answer 1

Sequential access memory. 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.

Answer 2

Sequential memory reads and writes data into a file sequentially whereas RAM reads and writes onto a data file randomly.  

• Sequential Memory reads from file in a sequential manner, from beginning to end . It does the same for writing information onto a file.

• Random Access Memory(RAM) reads and writes on to a data file randomly, anywhere in the file.

• Sequential memory is more useful when we need data in a certain order all the time. RAM is more advantageous otherwise a it uses indexing to access the required information. As such RAM is faster that sequential memory.

• In the modern day computing, storage devices can be programmed to store data both sequentially or randomly. Magnetic tapes in older times stored purely sequential data.

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