Multiple choice

Main memory gets tristate nature when tristate buffers are connected to the device

  1. both at input and output

  2. only at input

  3. only at output

  4. only at address port

  5. none of the above
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A Correct answer
Explanation

Memory chip accepts the data bit at the input and loads it in by WR, and outputs data bit at output by RD. So, both output and input remain connected to the bus where tristate nature is required. So, these buffers are required at both input and output. 

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