Hermosa Valley Technology Period 0
VCR
By Meghan O'Hara
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Hermosa Valley Technology Period 0 |
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VCR |
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By Meghan O'Hara |
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Quick Facts:
Information on how it works:Alexander Bonatief invented the VCR, also known as a video recorder. It was invented in the year 1956.Like a television receiver a VCR first extracts the signal from the television carrier signal that is either broadcast or cabled to the home. Instead of sending the video signal to the television tube to be seen, a video recorder preserves it on a tape. The video signal goes to a record-replay head
that records it on a magnetic tape. It replays the tape to send
the recorded signal to a television set. However, the tape must
pass the head at a very high speed to record a video signal.
This is because so much information has to be stored. Therefore
the head rotates rapidly as the tape passes, recording video
signals in diagonal tracks across the tape.:0) Resources: Macauly , David The Way Things Work, 1999Links:
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