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Digital Electronics

Digital Electronics
The NOR gate is OR gate followed by ___________.

None of these
AND gate
NOT gate
NAND gate

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Digital Electronics
NAND. gates are preferred over others because these

have lower fabrication area
provide maximum density in a chip.
consume least electronic power
can be used to make any gate

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 octal
 natural BCD
 ASCII
 hexadecimal

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Digital Electronics
A Binary number system has how many digits.

 2
 0
 10
 1

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to positive logic system.

 –1.5 V and – 5 V
 0 V and 5 V
 1 V and -5 V
 5 V and 0 V

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Digital Electronics
The number 10000 would appear just immediately after

FFFF (hex)
7777 (octal)
All of these
1111 (binary)

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