Telephone companies all over the world are upgrading their copper cable systems, which will allow them large quantities of data to be transmitted rapidly, securely, and virtually error-free. Identify this new system.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Optic Fiber Cables
Option (1) Optic Fiber Cables — Correct. The first major breakthrough in telecommunication was the use of optic fiber cables (OFC). Faced with competition, telephone companies all over the world upgraded their copper cable systems to include them, and these carry large quantities of data rapidly, securely and virtually error-free.
Option (2) Wireless system — Incorrect. A wireless system sends signals through the air, with no cable, while the question speaks of upgrading cable systems.
Option (3) Cyberspace — Incorrect. Cyberspace is the world of electronic computerised space, not a cable.
Option (4) Satellite systems — Incorrect. Satellites link places through space, without any cable.
NCERT (2025-26): “Communications … Today there is a phenomenal pace of development. The first major breakthrough is the use of optic fiber cables (OFC). Faced with mounting competition, telephone companies all over the world soon upgraded their copper cable systems to include optic fiber cables. These allow large quantities of data to be transmitted rapidly, securely, and are virtually error-free. With the digitisation of information in the 1990s, telecommunication slowly merged with computers to form integrated networks termed as Internet.” |