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Digital Electronics

Digital Electronics
A half adder is a ________ circuit.

 Both A and B
 Sequential
 None
 Combinational

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Digital Electronics
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.

10 CPS
12 CPS
None of these
120 CPS

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Digital Electronics
NAND. gates are preferred over others because these

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

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Digital Electronics
The momentary change in the output/state of the flip-flops is known as

 unstable state
 tri-state
 trigger
 inverter

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

All of these
 EAROM
 ROM
 PROM

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Digital Electronics
Unit distance code is the other name of

 sequential code
 self-complementing code
 XS-3 code
 cyclic code

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