Correct option is D
Assertion (A): False. Static RAM (SRAM) is used for CPU cache, while Dynamic RAM (DRAM) is used for a PC's main memory.
Reason (R): True. SRAM is faster and more expensive than DRAM, making it suitable for cache memory.
Information Booster:
1.
Static RAM (SRAM):
· Retains data as long as power is supplied.
· Faster and more expensive.
· Used in CPU cache and registers.
2.
Dynamic RAM (DRAM):
· Stores data using capacitors that need constant refreshing.
· Slower and cheaper.
· Used in main memory (RAM).
Additional Knowledge:
· SRAM uses flip-flops for storage, while DRAM uses capacitors.
· DRAM is more common in PCs due to its cost efficiency.