WHAT IS ELECTRONICS ?
*The branch of engineering in which the flow and control of electrons in vacuum or semiconductor are studied is called electronics.
*Electronics can also be defined as the branch of engineering in which the electronic devices and their utilization are studied.
*The motion of electrons through a conductor gives us electric current. This electric current can be produced with the help of batteries and generators.
*The device which controls the flow of electrons is called electronic device. These devices are the main building blocks of electronic circuits.
*Electronics have various branches include, digital electronics, analog electronics, micro electronics, nanoelectronics, optoelectronics, integrated circuit and semiconductor device.
*Electronics can also be defined as the branch of engineering in which the electronic devices and their utilization are studied.
*The motion of electrons through a conductor gives us electric current. This electric current can be produced with the help of batteries and generators.
*The device which controls the flow of electrons is called electronic device. These devices are the main building blocks of electronic circuits.
*Electronics have various branches include, digital electronics, analog electronics, micro electronics, nanoelectronics, optoelectronics, integrated circuit and semiconductor device.
ELECTRONICS HISTORY
Diode vacuum tube was the first electronic component invented by J.A. Fleming. Later, Lee De Forest developed the triode, a three element vacuum tube capable of voltage amplification. Vacuum tubes played a major role in the field of microwave and high power transmission as well as television receivers.
In 1947, Bell laboratories developed the first transistor based on the research of Shockley, Bardeen and Brattain. However, transistor radios are not developed until the late 1950’s due to the existing huge stock of vacuum tubes.
In 1959, Jack Kilby of Texas Instruments developed the first integrated circuit. Integrated circuits contain large number of semiconductor devices such as diodes and transistors in very small area.
In 1947, Bell laboratories developed the first transistor based on the research of Shockley, Bardeen and Brattain. However, transistor radios are not developed until the late 1950’s due to the existing huge stock of vacuum tubes.
In 1959, Jack Kilby of Texas Instruments developed the first integrated circuit. Integrated circuits contain large number of semiconductor devices such as diodes and transistors in very small area.
LET'S TALK ABOUT THE MODULE OF ELECTRONICS?
WELCOME TO THE WORLD OF CONSUMER ELECTRONICS SERVICING !
This Module is an exploratory course which leads you to Consumer Electronics Servicing National Certificate Level II ( NC II)1 . It covers five common competencies that a Grade 7 / Grade 8 Technology and Livelihood Education (TLE) student like you ought to possess, namely:
1) Use Hand Tools;
2) Perform Mensuration and Calculation;
3) Prepare and Interpret Technical Drawings;
4) Practice Occupational Safety and Health; and
5) Maintain Tools and Equipment
These five common competencies are covered separately in five Lessons. As shown below, each Lesson is directed to the attainment of one or three learning outcomes:
1) Use Hand Tools;
2) Perform Mensuration and Calculation;
3) Prepare and Interpret Technical Drawings;
4) Practice Occupational Safety and Health; and
5) Maintain Tools and Equipment
These five common competencies are covered separately in five Lessons. As shown below, each Lesson is directed to the attainment of one or three learning outcomes:
lessons in electronics
Lesson 1 – Use Hand Tools
LO1. Prepare hand tools
LO 2. Use appropriate hand tools and test equipment
Lesson 2 – Perform Mensuration and Calculations
LO 1. Select measuring instruments
LO 2. Carry out measurements and calculations
LO 3. Maintain measuring instruments
Lesson 3 – Prepare and Interpret Technical Drawings
LO1. Identify different kinds of technical drawings
LO2. Interpret technical drawing
LO3. Prepare/Make changes in electrical/electronic schematics and diagrams
Lesson 4 – Practice Occupational Health and Safety
LO 1. Identify health hazards and occupational risks
LO 2.Observe occupational and safety practices
Lesson 5 – Maintain Tools and Equipment
LO 1. Maintain hand tools and equipment
LO 2 Perform basic preventive maintenance of electronic tools and equipment Your success in this exploratory course on Consumer Electronics Servicing is shown in your ability to perform the performance standards found in each Lesson.
LO1. Prepare hand tools
LO 2. Use appropriate hand tools and test equipment
Lesson 2 – Perform Mensuration and Calculations
LO 1. Select measuring instruments
LO 2. Carry out measurements and calculations
LO 3. Maintain measuring instruments
Lesson 3 – Prepare and Interpret Technical Drawings
LO1. Identify different kinds of technical drawings
LO2. Interpret technical drawing
LO3. Prepare/Make changes in electrical/electronic schematics and diagrams
Lesson 4 – Practice Occupational Health and Safety
LO 1. Identify health hazards and occupational risks
LO 2.Observe occupational and safety practices
Lesson 5 – Maintain Tools and Equipment
LO 1. Maintain hand tools and equipment
LO 2 Perform basic preventive maintenance of electronic tools and equipment Your success in this exploratory course on Consumer Electronics Servicing is shown in your ability to perform the performance standards found in each Lesson.
ENJOY! AND WELCOME