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Digital Electronics

Digital Electronics
The XS-3 code is a

 cyclic code
 error-correcting code
 self-complementing code
 weighted code

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

 NOR
 NAND
 none of these
 OR

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Digital Electronics
(1D)16 in BCD 8421 code is

 00101001
 00100100
 00011101
 00011111

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Digital Electronics
The logic expression AB can be implemented by giving the inputs A and B to a two-input

 NAND gate
 NOR gate
 X-NOR gate
 X-OR gate

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Digital Electronics
1s Complement of 11001010 is

 00110101
 00110111
 11001001
 11001011

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 1’s complement is used to represent the numbers, then the range will be

 -127 to 127
 -128 to 127
 -256 to 255
 -256 to 256

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