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Digital Electronics

Digital Electronics
The address bus with a ROM of size 1024 × 8 bits is

 8 bits
 10 bits
 16 bits
 12 bits

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Digital Electronics
In Boolean algebra A.A is equal to

 2A
 1
 A²
 A

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Digital Electronics
A self-complementing code for the decimal digits is created using the weight 4 4 3 -2. The value of 8592 in the code is

 1000 0101 1001 0010
 1100 0111 1111 0011
 1100 1011 1111 1001
 1100 1001 1111 1000

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Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 X-OR
 NOR
 NAND
 AND, OR, and NOT

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Digital Electronics
Which number system has a base of 16

 None
 Octal
 Hexadecimal
 Decimal

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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

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

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