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Rcis from rcis, Bengaluru

Subject :ICSO Class : Class 7

Which of the following cannot be used for mass storage of digital data?
A Hard disk drive
B RAM
C Optical disc drive
D Optical jukebox

Ans 1:

Rcis from rcis, Bengaluru

ans is RAM ;SINCE THE DATA STORED IN IT GETS DELETED ON POWER FAILURES