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Digital Electronics

Digital Electronics
Which of the following shows the correct attachment of even parity bit to the data 00001001?

 000010010
 100001001
 000001001
 000010011

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Digital Electronics
The binary code of (21.125)10 is

10101.001
10101.01
10100.111
10100.001

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Digital Electronics
The main criterion in the design of a digital circuit is reduction of

 cost
 size
 weight
 volume

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Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 32 × 8
 16 × 16
 256 × 1
 64 × 4

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +2n-1,-2n-1
 +2n-1,-(2n-1+1)
 +(2n-1-1),-(2n-1-1)
 +(2n-1-1),-2n-1

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Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 1
 0
 2
 4

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