RFID and its applications

1. RFID

1.1. Background

1.2. Principle

1.3. Components

1.4. Types

1.4.1. Active

1.4.2. Passive

1.4.3. Semi-passive

1.5. Radio Frequencies used

2. Advantages

2.1. Effective

2.2. Contactless technology

2.3. Data stored can be changed

2.4. Hold more data

2.5. Security

3. Disadvantages