- CD-ROM stores data using optical technology (pits and lands). - It is 'Read-Only', meaning data cannot typically be written or modified by the user after manufacturing. - Secondary memory (or secondary storage) devices store data persistently and are external to the computer's primary memory (RAM) and CPU registers. Examples include hard drives, SSDs, USB drives, CD/DVD/Blu-ray discs.
CD-ROM is a
Asked in TNPSC CS Prelims 2014 · Topic: Components of a Computer System (Memory Hierarchy: Primary Memory (RAM, ROM, Cache), Secondary Storage Devices (HDD, SSD, Optical))
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