Introduction
In Information and Communication Technology (ICT), the term media refers to the physical materials or communication channels used to transmit data or messages. Media can be divided into different types based on how data is transferred.
Types of Media
1. Wired Media (Guided Media)
Wired media use physical cables or wires to transmit data. They are more reliable and secure for communication over short or long distances.
- Twisted Pair Cable: Commonly used in telephone lines and LANs.
- Coaxial Cable: Used for cable TV and older Ethernet networks.
- Fiber Optic Cable: Uses light signals for high-speed data transfer over long distances.
2. Wireless Media (Unguided Media)
Wireless media use electromagnetic waves to transmit data without physical cables. They are suitable for mobile and remote communication.
- Radio Waves: Used in radio, mobile phones, and Wi-Fi.
- Microwaves: Used for satellite and long-distance communications.
- Infrared: Used in remote controls and short-range devices.
Conclusion
Both wired and wireless media are essential in networking and communication. The choice depends on the requirement for speed, cost, distance, and security.