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Digital Electronics

Digital Electronics
If in a base b number system, 54/4=13, the base of the number is

 7
 9
 8
 6

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 10101111
 11100000
 00011111
 011100001

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Digital Electronics
X' AND X' will result

 0
 1
 X
 X power 2

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Digital Electronics
AND operation of (79)10 & (-56)10 is

 50H
 08H
 48H
 42H

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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

 64 × 4
 16 × 16
 256 × 1
 32 × 8

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Digital Electronics
In the toggle mode a JK flip-flop has

 J = 1, K = 0.
 J = 1, K = 1.
 J = 0, K = 1.
 J = 0, K = 0.

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