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Yunus,Big
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Hello Yunus,Big screens we see today haven't been anurod too long. The old TVs had what is known as cathode ray tubes. Very big TVs in those days would have been very, very expensive and would need a lot of power. Once we had LCD and LED TVs, it was much more cost effective to make large screen TVs.Home video cameras have had microphones from the start. In the technology post I made showing an old movie projector, the 8mm film camera didn't have sound but some did. Adding sound was more expensive for 8mm so many didn't have it.Many couldn't afford TVs when they first came out. My family only had one because my grandfather owned a small electrical store and wanted us to have one so people could see one working in a home. Now many home have a number of TVs.@RossMannell
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(VISITOR) AUTHOR'S NAME
Lisbeth
MESSAGE TIMESTAMP
19 december 2014, 02:51:57
AUTHOR'S IP LOGGED
87.238.131.101
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