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Digital Electronics

Digital Electronics
A number system with radix 2 is known as

 Hexadecimal
 Octal
 Binary
 Decimal

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Digital Electronics
Which one of the following is an invalid state in 8-4-2-1 binary coded decimal counter

 0011
 1001
 1000
 1100

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Digital Electronics
What is mean by FPU

 floating parallel unit
 floating point unit
 floating point universal
 floating parallel universal

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 binary code
 8421 code
 2421 code
 cyclic code

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Digital Electronics
In digital systems, 1 byte is equal to ________ bit(s).

 1
 2
 8
 4

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an AND or an X-NOR
 a NAND or a NOR
 an X-OR or an X-NOR
 an OR or a NAND

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