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Digital Electronics

Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 2:3
 2:1
 1:1
 1:2

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Digital Electronics
Why generic array logic (GAL) device was invented ?

 Mask programmable
 One-time programmable
None of these
 Reprogrammable

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Digital Electronics
An EPROM is

 programmable and erasable
 erasable but not programmable
 volatile
 non erasable

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Digital Electronics
The binary number designations of the rows and columns of the K-map are in

 XS-3 code
 BCD code
 Gray code
 binary code

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Digital Electronics
The decimal equivalent of the highest possible address for an 8-bit address bus is

 8
 256
 255
 128

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Digital Electronics
One bit full adder has ________ inputs

 3
 4
 2
 any number

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