Which type of memory uses a constant electrical current loop through cross-coupled inverters to hold its data state without needing refresh cycles? MCQ with Answer and Explanation
Which type of memory uses a constant electrical current loop through cross-coupled inverters to hold its data state without needing refresh cycles?
A. EPROM
B. DRAM
C. Flash Memory
D. SRAM
Answer: Option D
Solution (By JKSSB Mock Tests)
SRAM (Static RAM) uses a latching circuitry design (typically 6 transistors per cell forming cross-coupled inverters) to maintain its state as long as power is applied.
Explanation:
In traditional chipset architecture, the Northbridge connects the CPU to high-speed components like RAM and PCIe graphics. Modern CPUs often integrate the memory controller, reducing the Northbridge's role.
What feature allows modern computer memory controllers to access two independent memory modules simultaneously, effectively doubling the standard data transfer bandwidth?
Explanation:
Dual-channel architecture introduces two independent memory bus pathways, allowing the controller to communicate with two RAM sticks concurrently to increase data throughput.
Explanation:
The cache controller utilizes replacement policies like Least Recently Used (LRU) to determine which older data blocks to discard when space is needed for new cache lines.
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