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प्रश्न
Answer the following question :
Distinguish between digital and analogue signals.
उत्तर
| Digital Signals | Analogue Signals |
| 1. They are discontinuous functions of time or discrete time signals. | 1. They are continuous functions of time. |
| 2. They use discrete values to represent information. They are represented by square waves. | 2. They use a continuous range of values to represent information. They are represented by sine waves or other continuous graphs. |
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संबंधित प्रश्न
Write the truth table for circuit given in figure below consisting of NOR gates and identify the logic operation (OR, AND, NOT) which this circuit is performing.
(Hint: A = 0, B = 1 then A and B inputs of second NOR gate will be 0 and hence Y=1. Similarly work out the values of Y for other combinations of A and B. Compare with the truth table of OR, AND, NOT gates and find the correct one.)
Write the truth table for the circuits given in following figure consisting of NOR gates only. Identify the logic operations (OR, AND, NOT) performed by the two circuits.
(a)
(b)
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