Digital Techniques: Applications and advantages of digital systems

Applications and advantages of digital systems:

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Applications of digital systems:

• “Digitization” has spread to a wide range of applications,including information (computers), telecommunications,control systems etc.• Digital circuitry replaces many analog systems:– Audio recording: from tape to music CD to MP3 (MPEG Layer 3) player– Image processing: from silver‐halide film to digital camera– Telephone switching networks– Combustion control in car engines

Advantages of Digital Systems:

1. Ease of programmability
2. Reduction in cost of hardware
3. High speed
4. High Reliability
5. Design is easy
6. Result can be reproduced easily
Below are the reasons for moving towards Digital systems

The digital systems can be used for different applications by simply changing the program without additional changes in hardware.

The cost of hardware gets reduced by use of digital components and this has been possible due to advances in IC technology. With ICs the number of components that can be placed in a given area of Silicon are increased which helps in cost reduction.

Digital processing of data ensures high speed of operation which is possible due to advances in Digital Signal Processing.

Digital systems are highly reliable one of the reasons for that is use of error correction codes.

The design of digital systems which require use of Boolean algebra and other digital techniques is easier compared to analog designing.

Since the output of digital systems unlike analog systems is independent of temperature, noise, humidity and other characteristics of components the reproducibility of results is higher in digital systems than in analog systems.