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Digital Electronics

Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NOR gate?

 OR
 AND
 X-NOR
 NAND

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

 code converter
 decoder
 multiplexer
 encoder

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Digital Electronics
The devices commonly used for making digital circuits are

 contact switches
 semiconductor devices
 relays
 mechanical switches

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 100111
 001000
 0001111
 101001

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Digital Electronics
A bubbled NOR gate is equivalent to a

 NAND gate
 AND gate
 NOR gate
 X-OR gate

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Digital Electronics
Digital computers are more widely used as compared to analog computers, because they are

Less expensive
Easier to maintain
Useful over wider ranges of problem types
Always more accurate and faster

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