Wednesday, July 24, 2019

(84) Secondary memory

 Secondary memory


Ø Sequential memory:- a sequential memory access storage device is one in which the location desired may be sequential through the location.
Ex – magnetic tape.
Ø Direct access memory:- the information is stored or available in any order .
Ø It is a direct access memory which is made up of optical fibre.
Ex :- CD-ROM, WORM, :- WRITE ONLY READ MOD.

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