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Digital Electronics

Digital Electronics
How many bits are required to store one BCD digit ?

 1
 3
 2
 4

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Digital Electronics
The XS-3 code is a

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

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 001000
 0001111
 100111
 101001

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Digital Electronics
A 16-square eliminates

 3 variables
 8 variables
 4 variables
 2 variables

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

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Digital Electronics
Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

TTLLS
CMOS
TTLAS
ECL

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