Place the following transmission technologies in the chronological order of their emergence:  

(A) Coaxial cable – satellites – optical fibre cable – wimax 

(B) Satellites – coaxial cable – optical fibre cable – wimax 

(C) Coaxial cable – wimax – optical fibre cable – satellites 

(D) Coaxial cable – optical fibre cable – satellites – wimax

Correct Ans: (A)

Explanation:

Transmission technologies have advanced significantly over time, shaping how information is shared and received. Their chronological development highlights the transition from early methods to modern innovations. Let’s explore their emergence and significance.

1. Coaxial Cable: Coaxial cables appeared first, revolutionizing communication by providing better bandwidth for television and telephony. These cables ensured more reliable data transmission compared to earlier technologies, marking a major milestone in wired communication.
2. Satellites: Next, satellites emerged, introducing long-distance communication capabilities. With the launch of satellites, global communication became faster and more efficient. This innovation enabled live broadcasts and real-time communication across continents.
3. Optical Fiber Cable: Afterward, optical fiber technology entered the scene. It further transformed data transmission by providing high-speed connectivity and higher bandwidth. Additionally, optical fiber significantly reduced data loss and improved overall efficiency.
4. WiMAX: Finally, WiMAX (Worldwide Interoperability for Microwave Access) developed as a wireless transmission technology. It provided high-speed internet access over long distances, especially in areas lacking wired infrastructure. This innovation expanded connectivity in rural and urban areas alike.

In conclusion, the chronological sequence—coaxial cable, satellites, optical fiber cable, and WiMAX—shows the evolution of communication technologies. Each advancement built upon its predecessor, providing better speed, connectivity, and reliability. These technologies collectively transformed how people connect and share information worldwide, paving the way for the modern communication era.