What is the primary advantage of using DDR4 over DDR3 RAM?
A. Larger physical size
B. Higher data rates and lower power consumption
C. Lower data transfer rates
D. Higher operating voltage
Answer: Option B
Solution (By JKSSB Mock Tests)
DDR4 offers higher data rates (up to 3200 MT/s and beyond) and lower operating voltage (1.2V vs 1.5V for DDR3), leading to improved performance and efficiency.
Explanation:
EEPROM is electrically erasable and reprogrammable, unlike EPROM which requires UV light. PROM is programmable once, and Mask ROM is fixed.
Explanation:
DVDs use a shorter wavelength laser (650 nm vs 780 nm for CDs), which allows smaller pits and tighter tracks, resulting in higher storage capacity (4.7 GB vs 700 MB).
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