Digital Electronics
The binary equivalent of hexadecimal number 4F2D is

 0100 1110 0010 1101
 0101 1111 0010 1100
 0100 1111 0010 1101
 0100 1111 0010 1100

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Digital Electronics
In case of OR gate, no matter what the number of inputs, a

0 at any input causes the output to be at logic 1.
0 any input causes the output to be at logic 0
1 at any input causes the output to be at logic 0
1 at any input causes the output to be at logic 1

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