Which of the following is a characteristic of static RAM (SRAM)?
A. High density and low cost
B. Used as main memory in PCs
C. Requires periodic refresh
D. Fast and expensive
Answer: Option D
Solution (By JKSSB Mock Tests)
SRAM is fast and expensive compared to DRAM. It does not require refreshing and is used for cache memory. DRAM is used as main memory and is dense and cheaper.
Explanation:
Hard disks are magnetic storage devices that use magnetic media to store data. SSDs and pen drives use flash memory, and Blu-ray uses optical technology.
Explanation:
A standard base-specification single-layer, single-sided digital versatile disc (DVD) holds a nominal maximum storage capacity of 4.7 Gigabytes.
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