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Digital Electronics

Digital Electronics
All the integers and decimal numbers are represented by

 even numbers
 odd numbers
 whole numbers
 real numbers

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 OR
 X-OR
 AND
 X-NOR

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

Base 8
Base 3
Base 10
Base 16

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

 decoder
 multiplexer
 code converter
 encoder

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Digital Electronics
It is desired to have a 64 × 8 ROM. The ROMs available are of 16 × 4 size. The number of ROMs required will be

 2
 6
 4
 8

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Digital Electronics
Which of these sets of logic gates are designated as universal gates?

 NOR, NAND.
 XOR, NOR, NAND.
 OR, NOT, AND.
 NOR, NAND, XNOR.

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