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Digital Electronics

Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A.B
 A + B
 A & B
 A - B

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Digital Electronics
Consider the following multiplication: (10w1z) × (15)10 = (y01011001)2 Which one of the following gives appropriate values of w,y and z?

 w = 0,y = 0,z = 1
 w = 1,y = 1,z = 1
 w = 1,y = 1,z = 0
 w = 0,y = 1,z = 1

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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

 NAND
 NOR
 X-OR
 AND, OR, and NOT

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Digital Electronics
EBCDIC code is a

 7-bit code
 8-bit code
 5-bit code
 10-bit code

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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

 EAROM
All of these
 ROM
 PROM

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Digital Electronics
Which GATE IS CALLED INEQUALITY COMPARATOR?

 2. AND
 1. NOR
 4. NOT
 3. XOR

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