alleryCompared with primary memory, secondary memory is:
AFaster and more expensive
BFaster but volatile
CSlower and cheaper
DSlower but directly readable by the CPU
Answer & Solution
Correct answer: C. Slower and cheaper
1. Primary memory has limited capacity and is either volatile (RAM) or read-only (ROM).
2. Secondary memory is non-volatile and holds far more data.
3. The trade-off is speed and price: it is slower and cheaper than the main memory.
4. It also cannot be reached directly by the CPU, which rules out option D.
5. Hard disks, CD/DVD and memory cards are the usual examples.
_Source: syllabus Computer Science Class 11, Ch 1 'Computer System', S1.3.2 Types of Memory_
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