Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > Which of the following uses a software refres...
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Which of the following uses a software refresh in the DRAM/
- a)8086
- b)80386
- c)Pentium
- d)Apple II personal computer
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which of the following uses a software refresh in the DRAM/a)8086b)803...
Explanation: The Apple II personal computer have a particular memory configuration, periodically the DRAM gets blocked and is used for video memory accessing to update the screen which can refresh the DRAM.
Most Upvoted Answer
Which of the following uses a software refresh in the DRAM/a)8086b)803...
Explanation:
Apple II personal computer
- The Apple II personal computer uses a software refresh mechanism in the DRAM.
- In the Apple II, the DRAM chips require a periodic refresh of their memory cells to prevent data loss.
- This refresh operation is performed by software routines running on the computer, which send signals to the DRAM chips to refresh their contents.
- This approach is known as a software refresh, as opposed to a hardware refresh which is done automatically by the memory controller in some other systems.
- The use of a software refresh mechanism in the Apple II allowed for a simpler and more cost-effective design, although it required more processing power to maintain the memory cells.
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Which of the following uses a software refresh in the DRAM/a)8086b)80386c)Pentiumd)Apple II personal computerCorrect answer is option 'D'. Can you explain this answer?
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