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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?
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.
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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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