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Digital Electronics

Digital Electronics
Choose the option which is not a code conversion standard

 BCD code
 Gray code
 Truth code
 Excess-3 code

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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 2’s complement is used to represent the numbers, then the range will be

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

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

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

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Digital Electronics
Stack is also known as

 LILO memory
 LIFO memory
 Flash memory
 FIFO memory

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Digital Electronics
NAND. gates are preferred over others because these

consume least electronic power
have lower fabrication area
can be used to make any gate
provide maximum density in a chip.

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Both (I)&(IV)
 Both (I) & (II)
 Both (II)&(III)
 Only (II)

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