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Digital Electronics

Digital Electronics
The complement of a function A is

 1
 A
 Ā
 0

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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.

12 CPS
120 CPS
10 CPS
None of these

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Digital Electronics
The codes in which each successive code word differs from the preceding one in only one bit position are called

 BCD codes
 sequential codes
 cyclic codes
 self-complementing codes

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Digital Electronics
The time required for a gate to change its output is called as

 Decay time
 run time
 start time
 propagation time

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Digital Electronics
How many input and output required for demultiplexer ?

 number of selection inputs and one output
None of these
 one input and one output
 one input and many output

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Digital Electronics
Why encoder is used in the digital electronics ?

None of these
 To convert non coded information into coded form
 It is used to separate address bus and data bus
 To convert coded information into non coded form

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