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Which of the following statements is false about dynamic RAM?
- a)Power consumption of dynamic RAMs is more than that of static RAMs.
- b)Gate, density of dynamic RAMs is higher than that of static RAMs.
- c)Dynamic RAMs require a memory refresh cycle after each memory read cycle.
- d)Main memory of a general purpose computer system is usually built using dynamic RAMs.
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Which of the following statements is false about dynamic RAM?a)Power c...
Dynamic RAM has one transistor and capacitor while SRAM has lower density because there are total 6 transistors (occupying more space) therefore density of SRAM is more than density of DRAM.
Most Upvoted Answer
Which of the following statements is false about dynamic RAM?a)Power c...
False Statement: Gate, density of dynamic RAMs is higher than that of static RAMs.
Explanation:
To determine the false statement about dynamic RAM (DRAM), let's analyze each option:
a) Power consumption of dynamic RAMs is more than that of static RAMs.
This statement is true. Dynamic RAMs consume more power compared to static RAMs. The power consumption is mainly due to the constant need for refreshing the memory cells in DRAM.
b) Gate, density of dynamic RAMs is higher than that of static RAMs.
This statement is false. The density of dynamic RAMs is generally higher than that of static RAMs. Dynamic RAMs are composed of a single transistor and a capacitor per memory cell, allowing for higher density. On the other hand, static RAMs typically require several transistors per memory cell, resulting in lower density.
c) Dynamic RAMs require a memory refresh cycle after each memory read cycle.
This statement is true. Dynamic RAMs store data in capacitors, which gradually leak charge over time. To preserve the data, the memory cells need to be refreshed periodically. Therefore, after each memory read cycle, a memory refresh cycle is required to ensure the data is retained.
d) Main memory of a general-purpose computer system is usually built using dynamic RAMs.
This statement is true. Dynamic RAMs are commonly used as the main memory in general-purpose computer systems. This is primarily due to their higher density and lower cost per bit compared to static RAMs. The ability to store large amounts of data at a lower cost makes dynamic RAMs an ideal choice for main memory in most computer systems.
In conclusion, the false statement about dynamic RAM is option 'B' - Gate, density of dynamic RAMs is higher than that of static RAMs. The density of dynamic RAMs is generally higher than that of static RAMs.
Explanation:
To determine the false statement about dynamic RAM (DRAM), let's analyze each option:
a) Power consumption of dynamic RAMs is more than that of static RAMs.
This statement is true. Dynamic RAMs consume more power compared to static RAMs. The power consumption is mainly due to the constant need for refreshing the memory cells in DRAM.
b) Gate, density of dynamic RAMs is higher than that of static RAMs.
This statement is false. The density of dynamic RAMs is generally higher than that of static RAMs. Dynamic RAMs are composed of a single transistor and a capacitor per memory cell, allowing for higher density. On the other hand, static RAMs typically require several transistors per memory cell, resulting in lower density.
c) Dynamic RAMs require a memory refresh cycle after each memory read cycle.
This statement is true. Dynamic RAMs store data in capacitors, which gradually leak charge over time. To preserve the data, the memory cells need to be refreshed periodically. Therefore, after each memory read cycle, a memory refresh cycle is required to ensure the data is retained.
d) Main memory of a general-purpose computer system is usually built using dynamic RAMs.
This statement is true. Dynamic RAMs are commonly used as the main memory in general-purpose computer systems. This is primarily due to their higher density and lower cost per bit compared to static RAMs. The ability to store large amounts of data at a lower cost makes dynamic RAMs an ideal choice for main memory in most computer systems.
In conclusion, the false statement about dynamic RAM is option 'B' - Gate, density of dynamic RAMs is higher than that of static RAMs. The density of dynamic RAMs is generally higher than that of static RAMs.
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Which of the following statements is false about dynamic RAM?a)Power consumption of dynamic RAMs is more than that of static RAMs.b)Gate, density of dynamic RAMs is higher than that of static RAMs.c)Dynamic RAMs require a memory refresh cycle after each memory read cycle.d)Main memory of a general purpose computer system is usually built using dynamic RAMs.Correct answer is option 'B'. Can you explain this answer?
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