What Is Digital Electronics ?

Digital electronics

The area of electronics known as “digital electronics” is concerned with the analysis of digital signals and the parts that use or produce them.

Electronics for digital use

The digital circuit or digital electronics is made up of different parts that each have a unique job to do. These components are split into two groups:
• Active components
• Inactive components


Transistors and diodes are considered active components, whereas capacitors, resistors, inductors , and other passive elements are considered active.

  • Diodes


Semiconductor materials are used to make diodes. They are utilized to permit current to flow in a specific direction. Diodes of various sorts are included in the design of the digital circuit.

  • Transistors


A transistor is a semiconductor device having three terminals. The transistor’s primary purpose is to

  • Inductors and capacitors

The capacitor’s primary purpose is to store electrical energy. Two conducting plates are used to create a capacitor, and in the space between them is an insulator. Using an inductor, it is possible to resist changes in the current. They are employed for magnetic field storage of electric energy.

  • Gates, Logic

The fundamental elements of a digital circuit having more than one input and one output are called logic gates. The fundamental gates are AND, OR, and NOT, while the universal gates are NAND and NOR. These unique gates are called EX-OR and EX-NOR.

  • Switch and battery

The battery is responsible for converting chemical energy into electric energy. It serves as an energy source.

  • Resistors

The resistor obstructs the circuit’s current flow. The two types of resistors are fixed resistors and variable resistors. Ohm’s law is the foundation for how all resistors function.

Benefits of Digital Systems Compared to Analog Systems

In contrast to an analogue system, data transmission in digital systems occurs without noise-related degradation. The digital system also has noise immunity, which facilitates data storage. Contrarily, the analogue system experiences wear and tear, which deteriorates the stored information. The digital system has a computer interface that makes it simple to control the data. Software updates help keep the system free of bugs. The analogue system does not have access to this capability.

This feature is not available in the analog system.
Disadvantages of Digital System
Though the digital system has noise immunity and better storage, it does have disadvantages too:
• The energy consumed by the digital system is more compared to the analog system. This energy is consumed in calculations and signal processing, resulting in heat generation.
• These systems are expensive.
• The digital systems are fragile. That is, if one of the digital data is misinterpreted, the final data will change completely.
• Taking care of analog issues in digital systems could be demanding as analog components are used in designing the digital system.
Applications of Digital Circuits
Digital electronics or digital circuits are an integral part of electronic devices, and here are the uses of digital circuits:

• The display of digital watches is designed based on digital circuits.
• Rocket science and quantum computing use digital electronics.
• The automatic doors work on the principle of digital electronics.
Everyday encounters with traffic lights are based on digital circuits.

Ayushi Nautiyal

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