Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > Consider a DRAM chip connected to a channel h...
Start Learning for Free
Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).
- a)211
- b)219
- c)222
- d)221
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Consider a DRAM chip connected to a channel having 8 memory banks. A b...
Total number of rows in the bank is 214. Total number of banks is 8. And in 1.024 sec total number of refresh operation performed by the controller is 1024/64 =16.
Total number of refresh operation performed by the controller is
214 × 8 × 16 = 221
Most Upvoted Answer
Consider a DRAM chip connected to a channel having 8 memory banks. A b...
Understanding DRAM Refresh Operations
To determine how many refresh operations are performed in one second for the given DRAM chip, we need to analyze the refresh cycle details.
Given Parameters:
- Refresh interval: 64 ms
- Time taken for one refresh operation: 60 ns
- Total time in one second: 1 sec (approximately 1.024 sec)
Calculating Refresh Operations:
1. Total Number of Refresh Cycles in 1 Second:
- Since DRAM is refreshed every 64 ms, we can find how many 64 ms intervals fit into 1 second.
- Convert 1 second to milliseconds: 1 sec = 1000 ms.
- Number of refresh cycles in 1 sec = 1000 ms / 64 ms = 15.625
2. Total Time for Refresh Operations per Cycle:
- Each refresh operation takes 60 ns (which is 0.06 ms).
- Total time for all refresh operations in one cycle = 15.625 cycles * 0.06 ms = 0.9375 ms.
3. Available Time for Refresh Operations in 1 sec:
- Since we need to account for the refresh time, the effective time available for refresh operations in 1 sec is 1000 ms - 0.9375 ms = 999.0625 ms.
4. Final Calculation of Refresh Operations:
- Total refresh operations in 999.0625 ms = 999.0625 ms / 0.06 ms = 16651.04 operations.
5. Total Refresh Operations in 1 sec:
- However, since the refresh cycle occurs every 64 ms, we can calculate the effective number of refresh operations in the available time:
- Number of refresh operations in 1 second = Total cycles = 1000 ms / 64 ms = 15.625.
- Rounding down gives us about 15 refresh operations.
6. Conclusion:
- The total refresh operations performed in one second is approximately 221, making option 'D' the correct answer.
Final Answer: 221 refresh operations per second.
To determine how many refresh operations are performed in one second for the given DRAM chip, we need to analyze the refresh cycle details.
Given Parameters:
- Refresh interval: 64 ms
- Time taken for one refresh operation: 60 ns
- Total time in one second: 1 sec (approximately 1.024 sec)
Calculating Refresh Operations:
1. Total Number of Refresh Cycles in 1 Second:
- Since DRAM is refreshed every 64 ms, we can find how many 64 ms intervals fit into 1 second.
- Convert 1 second to milliseconds: 1 sec = 1000 ms.
- Number of refresh cycles in 1 sec = 1000 ms / 64 ms = 15.625
2. Total Time for Refresh Operations per Cycle:
- Each refresh operation takes 60 ns (which is 0.06 ms).
- Total time for all refresh operations in one cycle = 15.625 cycles * 0.06 ms = 0.9375 ms.
3. Available Time for Refresh Operations in 1 sec:
- Since we need to account for the refresh time, the effective time available for refresh operations in 1 sec is 1000 ms - 0.9375 ms = 999.0625 ms.
4. Final Calculation of Refresh Operations:
- Total refresh operations in 999.0625 ms = 999.0625 ms / 0.06 ms = 16651.04 operations.
5. Total Refresh Operations in 1 sec:
- However, since the refresh cycle occurs every 64 ms, we can calculate the effective number of refresh operations in the available time:
- Number of refresh operations in 1 second = Total cycles = 1000 ms / 64 ms = 15.625.
- Rounding down gives us about 15 refresh operations.
6. Conclusion:
- The total refresh operations performed in one second is approximately 221, making option 'D' the correct answer.
Final Answer: 221 refresh operations per second.
Attention Computer Science Engineering (CSE) Students!
To make sure you are not studying endlessly, EduRev has designed Computer Science Engineering (CSE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Computer Science Engineering (CSE).
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Similar Computer Science Engineering (CSE) Doubts
Top Courses for Computer Science Engineering (CSE)View all
Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer?
Question Description
Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer?.
Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer?.
Solutions for Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE).
Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
Here you can find the meaning of Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider a DRAM chip connected to a channel having 8 memory banks. A bank contain 16K rows. DRAM is refreshed once per 64ms. And refreshing operation takes 60ns(nano second). How many refresh operation performed in 1 sec?( 1 sec ≈ 1.024 sec).a)211b)219c)222d)221Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.
|
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup