GENERAL KNOWLEDGE

Detailed explanation-1: -Thomas Edison created many inventions, but his favorite was the phonograph. While working on improvements to the telegraph and the telephone, Edison figured out a way to record sound on tinfoil-coated cylinders. In 1877, he created a machine with two needles: one for recording and one for playback.

Detailed explanation-2: -In 1877, Thomas Edison invented the phonograph, the first machine that could record sound and play it back. On the first audio recording Edison recited, “Mary had a little lamb.

Detailed explanation-3: -Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures.

Detailed explanation-4: -In 1887, German American inventor Emile Berliner (1851–1929) patented the ‘gramophone’, a technology for recording and playing back sound. His work, which brought together developments in telephony, radio and synthetic materials, revolutionised the way we experience sound.