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Digital Electronics

Digital Electronics
A device which converts 2421 code into 8421code is called a

 coder
 code converter
 code encoder
 code decoder

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

 PROM
 EAROM
 ROM
All of these

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Digital Electronics
X' AND X' will result

 1
 X
 X power 2
 0

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Digital Electronics
The parity of the binary number 11011001 is

 same as the number of zeros
 odd
 not known
 even

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Digital Electronics
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 -7, -7 and -7 respectively
 -25, -9 and -57 respectively
 -6, -6 and -6 respectively
 25, 9 and 57 respectively

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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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MORE MCQ ON Digital Electronics

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