Evolution of information and communication technology II - JSS1 Computer Sudies Past Questions and Answers - page 2

The radio's evolution began with scientific discoveries related to electromagnetic waves in the late 19th century. Heinrich Hertz, Nikola Tesla, and Guglielmo Marconi played crucial roles. Marconi's successful transmission of wireless signals across the Atlantic in the early 20th century marked a breakthrough, leading to the "Golden Age of Radio" in the 1920s. Technological advancements like FM radio and digital broadcasting have since transformed the radio into a global communication marvel.

Television's history began with inventors like Paul Nipkow and John Logie Baird in the late 19th century. Philo Farnsworth's demonstration of the first fully electronic television system in 1927 marked a breakthrough. The 1930s saw experimental broadcasts, and by the late 1930s, regular programming began. Post-World War II, television expanded rapidly, introducing color in the 1950s. The transition to digital broadcasting, cable, satellite TV, and the internet age further transformed television viewing.

The history of computers started with ancient counting devices and progressed through mechanical calculators in the 17th century. Charles Babbage's Analytical Engine laid the foundation for electronic computers. The 20th century saw the development of ENIAC, transistors, and integrated circuits. Personal computers emerged in the 1970s and 1980s, followed by the internet age in the 1990s. The 21st century brought mobile computing, cloud computing, and advancements like artificial intelligence, showcasing a remarkable journey of innovation.