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Digital Electronics

Digital Electronics
How many bits are required to store one BCD digit ?

 1
 2
 3
 4

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 All inputs are HIGH
 The inputs are different
 The inputs are equal
 All inputs are LOW

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Digital Electronics
A new Binary Coded Pantry (BCP) number system is proposed in which every digit of a base-5 number is represented by its corresponding 3-bit binary code. For example, the base-5 number 24 will be represented by its BCP code 010100. In this numbering system,the BCP code 100010011001 corresponds to the following number in base-5 system

 2201
 4231
 423
 1324

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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

 AND, OR, and NOT
 NOR
 X-OR
 NAND

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Digital Electronics
In a read-only memory information can be stored

 by the user a number of times
 by the user only once during its life time
 in any of the above ways depending upon the type of memory
 at the time of fabrication

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Digital Electronics
A half adder is a ________ circuit.

 Combinational
 None
 Sequential
 Both A and B

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