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Digital Electronics

Digital Electronics
Which of the following is 1’s complement representation of +57

 00111001
 11000110
 00000001
 01000110

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Digital Electronics
The output of a NOR gate is high

 only when all the inputs are high
 only when at least one input is high
 only when at least one input is low
 only when all the inputs are low

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Digital Electronics
A bubbled AND gate is equivalent to a

 OR gate
 NOR gate
 NAND gate
 X-OR gate

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Digital Electronics
The code used for labeling the cells of a K-map is

 hexadecimal
 8-4-2-1 binary
 octal
 gray

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 NOR
 none of these
 OR
 NAND

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Digital Electronics
The binary code of (21.125)10 is

10101.01
10100.001
10100.111
10101.001

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