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GATE 2020 CS – Question 30

Computer Organization and Architecture · Memory Interfacing and Hierarchy · 1 mark · Numerical answer

If there are $m$ input lines and $n$ output lines for a decoder that is used to uniquely address a byte addressable 1 KB RAM, then the minimum value of $m+n$ is ______.

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Correct answer: 1034 to 1034

Explanation

1 KB = 1024 bytes, so the decoder needs $m=10$ inputs and $n=1024$ outputs. $m+n=1034$.