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Digital Electronics

Digital Electronics
A 15-bit Hamming code requires

 15 parity bits
 5 parity bits
 4 parity bits
 none of these.

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Digital Electronics
For checking the parity of a digital word, it is preferable to use

 AND gates
 NOR gates
 X-OR gates
 NAND gates

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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

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

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Digital Electronics
10’s complement of 63325600 is

 36774400
 36674400
 633256600
 366744399

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Digital Electronics
Which of the following is known as a mod-2 adder?

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

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Digital Electronics
The main equation for a D flip flop is

 Q=D
 Q=1
 Q=D'
 Q=0

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