Electronic Technology Science : Useful for The World in Real Everyday Life

Electronics is a branch of engineering that studies electronic devices and electronic circuits, including the design, construction and operation of various types of electronic devices such as transistors, resistors, capacitors, diodes and others.
This science also learns about the workings of electronic equipment such as computers, telephones, smartphone, televisions, radios, and others.
In electronics, there are several very important basic concepts, such as :

1. Electric current :
   Electric current is the movement of electrons within a conductor, which occurs when there is a potential difference (voltage) between two points in the conductor. The standard electric current of measurement is in Amperes (A).
2. Electrical voltage :
   Electrical voltage is the potential difference (difference in electric strength) between two points inside a conductor. The standard for measuring electric voltage is in Volts (V).
3. Electrical resistance :
   Electrical resistance is the property of a conductor that prevents the flow of electric current through that conductor. The standard measurement of electrical resistance is in Ohms (Ω).
4. Capacitance :
   Capacitance is the ability of an object to store an electric charge. Capacitance measurement standard is in Farads (F).
5. Inductance :
   Inductance is the ability of a coil to produce a magnetic field and produce an electrical voltage that opposes the change in the magnetic field. Inductance measurement standard is in Henry (H).

In practice, electronics is used in various applications, such as industry, telecommunications, control systems, and others.
Some professions related to electronics are electronics technicians, electronics engineers, electronic circuit designers, and others.
Electronics is also an important part of the development of modern technology, such as information technology, telecommunications, electric vehicles, and others.

In addition to the basic concepts already mentioned, electronics also covers various other topics such as :

1. Digital systems :
   Digital systems are systems that use digital signals, i.e. signals that have only two values, namely 0 and 1. Digital systems are used in a variety of applications, such as computers, cell phones, and others.
2. Analog system :
   An analog system is a system that uses analog signals, i.e. signals that have a continuous value. An example is the sound signal in a radio or television.
3. Integrated circuit :
   An integrated circuit is a collection of many electronic components assembled into a single chip. Integrated circuits are widely used in various electronic applications, such as in computers, cell phones, and other electronic equipment.
4. Microcontroller :
   A microcontroller is an integrated circuit that contains a complete CPU, memory, and I/O devices. Microcontrollers are widely used in various control applications, such as in washing machines, refrigerators, and others.
5. Power electronics :
   Power electronics is a field of electronics that is concerned with devices and circuits for controlling and transforming electrical power.
6. Communication electronics :
   Communication electronics is a field of electronics that specifically studies communication technologies, such as telephone, radio, television, and others.

Electronics is also related to several other disciplines, such as physics, mathematics, and electrical engineering.
Therefore, an understanding of electronics requires basic knowledge of these disciplines :

1. Digital electronics :
   Digital electronics is the area of electronics that studies circuits and devices that work with digital signals.
2. Electrical circuits :
   Electrical circuits are a collection of various electronic components that are assembled into a single unit. Electrical circuits can be used for various applications, such as signal amplifiers, filters, and others.
3. Electronic instrumentation :
   Electronic instrumentation is the field of electronics that studies the manufacture of measuring and controlling devices, such as oscilloscopes, multimeters, and so on.
4. Optoelectronics :
   Optoelectronics is the field of electronics that studies electronic devices that use light, such as LEDs, photodiodes, and others.
5. Nanoelectronics :
   Nanoelectronics is a field of electronics that studies electronic devices with very small sizes, which are below 100 nanometers.
6. Integrated electronics :
   Integrated electronics is a field of science that studies the integration of various electronic components into one integrated circuit.

The science of electronics is very broad and continues to develop along with technological developments. This makes this knowledge very important in everyday life, especially in the fields of technology and industry.
Some of the other sub-fields of electronics include :

1. Organic electronics :
   Organic electronics is a field of electronics that studies the use of organic compounds in electronic devices, such as organic transistors, OLEDs, etc.
2. Medical electronics :
   Medical electronics is a field of electronics that studies the use of electronic technology in the health sector, such as blood pressure gauges, hearing aids, etc.
3. Vehicle electronics :
   Vehicle electronics is the field of electronics that studies electronic devices used in vehicles, such as GPS navigation systems, car audio systems, etc.
4. Industrial electronics :
   Industrial electronics is a field of electronics that studies the use of electronic technology in industry, such as automation and control of production processes, etc.
5. Security electronics :
   Security electronics is a field of electronics that studies the use of electronic technology in security, such as surveillance cameras, alarm systems, etc.
6. Environmental electronics :
   Environmental electronics is a field of electronics that studies the use of electronic technology to maintain and improve the environment, such as measuring air quality, measuring water quality, and etc.
7. Hybrid electronics :
   Hybrid electronics is a field of electronics that studies the use of a combination of analog and digital technologies in a single device or system.

In studying electronics, you need to understand the basics of mathematics, physics, and electrical engineering. In addition, practice is also very important in gaining proficiency in this science, because many things must be learned through experience and experimentation.
To study electronics, there are several topics that need to be studied, including :

1. Electronic circuits :
   Electronic circuits are the foundation of electronics. It covers the basics of electricity and electronics, such as Ohm's law, resistance, capacitance, inductance, transistors, diodes, etc.
2. Electronic components :
   To build electronic circuits, you need to understand the basic components, such as resistors, capacitors, inductors, transistors, diodes, ICs, etc.
3. PCB (Printed Circuit Board) :
   PCB is a printed circuit board used to design and manufacture electronic circuits.
4. Electronic instrumentation :
   Electronic instrumentation is a technique of measuring and testing electronic circuits, such as measuring voltage, current, frequency, etc.
5. Digital electronics :
   Digital electronics is the use of digital signals in electronic circuits, covering topics such as logic gates, flip-flops, registers, etc.
6. Microcontroller :
   A microcontroller is an electronic device that contains a CPU, RAM, ROM, and peripherals, and can be used to control electronic circuits.
7. Electronic communication :
   Electronic communication covers topics such as modulation, demodulation, transmission and reception of signals.
8. Power electronics :
   Power electronics covers topics such as power management, inverters, DC-DC converters, etc.
9. Radio frequency electronics :
   Radio frequency electronics is the use of radio signals for wireless communications.
10. Analog electronics :
    Analog electronics covers topics like signal amplifiers, filters, oscillators, etc.

Studying electronics requires a lot of time and effort. However, if you take your studies seriously and persevere, you can develop a wide range of skills and knowledge in this field.