Differences Between Analogue and Digital Circuits:
- Signal:
- Analogue signals are continuous and represent physical measurements.
- Digital signals are discrete time signals generated by digital modulation.
- Waves:
- Analogue signals are denoted by sine waves.
- Digital signals are represented by square waves.
- Representation:
- Analogue uses a continuous range of values to represent information.
- Digital uses discrete values for information representation.
- Technology:
- Analogue records waveforms as they are.
- Digital records information using a limited set of numbers.
- Memory:
- Analogue memory is stored in the form of wave signals.
- Digital memory is stored in binary bits.
- Uses:
- Analogue is suited for audio and video transmission.
- Digital is best suited for computing and digital electronics.
- Cost:
- Analogue systems are generally low cost and portable.
- Digital systems are more expensive and less portable.
- Errors:
- Analogue systems are prone to considerable observational errors.
- Digital systems are free from such errors.
- Power:
- Analogue systems typically draw large amounts of power.
- Digital systems draw only negligible power.