mixed random/sequential-access memory???

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childs72

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I wonder is here the right place to post such question, but i am giving it a shoot...

Accessing sequential memory is not efficient when CPU would like to access different memory location.

Sequentially accessing random-access memory asserts address signals over address bus for every access, hence consumes more power.

Why not combine both these 2 design into a mixed Random/Sequential-Access Memory??? As the memory can be accessed either Random-Access (use addr bus) or Sequentially (use control signal, e.g: a "next" bit)?

Or... Pardon me if such design do exist.

Thx
 

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