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Digital Electronics

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

 < 6
 < 25
 < 20
 < 12

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Digital Electronics
A D-flip-flop is said to be transparent when

 the output is HIGH
 the output follow input
 the output is LOW
 the output follows clock

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Digital Electronics
A device which converts BCD into octal is called

 decoder
 code converter
 encoder
 demultiplexer

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Digital Electronics
Which one of the following is 2’s complement of -68?

 00111100
 11000100
 01111100
 10111100

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Digital Electronics
Which of the following is equivalant to an ODD function

 XNOR
 AND-NOR
 XOR
 NOR

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 8 × 8
 3 × 4
 8 × 4
 3 × 8

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