Implementation of 4-bit digital comparator using MSI ICs

IC 74LS85 is a ____.
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The IC 74LS85 has ___ sets of four bit inputs to be compared

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One that is not outcome of magnitude comparator is
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Output of comparator when A = 1010 and B = 1011 is _______.
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Output of comparator when A = 1100 and B = 1010 is _______.
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