From its invention to the late 1940s, television production was mostly experimental. after world war ii, television production became commercial. what is the difference?

Experimental production meant that companies were trying to perfect the science of the television.

Explanation:

The creation of the television set is the result of the combination of various inventions that made it possible to receive an electric signal and transform it into images. Officially, the first demonstration of the device took place in 1926, that year until the end of 1940, the television was manufactured experimentally, so that it is possible to study this technology, understand its operation and make improvements on the device, before being released so that people could buy a quality product.

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while looking through books for my class period i noticed the library cards in the books.most of them are torn or have no space to write out our names anymore.would we be able to replace them?

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