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Digital Electronics

Digital Electronics
In MSI, the number of gate circuits per chip is

 < 500
 12 to 99
 < 50
 50 to 100

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Digital Electronics
The output of a gate is HIGH if and only if all its inputs are LOW. It is true for

 X-NOR
 NOR
 NAND
 X-OR

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Digital Electronics
The NOR gate can function as a NOT gate if

 one input is set to 0
 one input is set to 1
 inputs are left open
 all inputs are connected together

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Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 8
Base 16
Base 3
Base 10

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Digital Electronics
A device which converts decimal number into BCD form is called

 multiplexer
 decoder
 encoder
 code converter

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Digital Electronics
The XS-3 code is a

 cyclic code
 self-complementing code
 weighted code
 error-correcting code

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