Correct option is B
Static Random-Access Memory (SRAM) does
not need to be refreshed like Dynamic Random-Access Memory (DRAM). This is because SRAM stores data using flip-flops, which maintain their state as long as power is supplied, making it faster and more reliable for certain applications.
Important Key Points:
1.
SRAM uses flip-flops to store each bit, which is why it does not require periodic refreshing like DRAM.
2. It is faster than DRAM due to shorter read/write cycles.
3. SRAM is commonly used in specialized applications such as CPU cache memory and buffers where speed is critical.
Knowledge Booster:
1.
DRAM: Uses capacitors to store data, which require frequent refreshing to retain information.
2. SRAM is more expensive and consumes more power per bit stored compared to DRAM, which is why it is used for smaller, high-speed memory applications.
3. Flip-flops in SRAM provide better reliability, but they occupy more space, limiting its use in large-scale memory storage.