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VHS the Video Home System is a recording and playing standard developed by Victor Company of Japan, and launched in September 1976, with The Young Teacher being the first movie to be released.
After an intense format war with Sony's Betamax format, VHS became the standard format for consumer recording and viewing. However due to the rise of DVD technology, A History of Violence, released on home video in 2006, was the last in the North American market.
VHS offered a longer playing time than Betamax, and it also had the advantage of a far less complex tape transport mechanism. Early VHS machines could rewind and fast forward the tape considerably faster than a Betamax VCR since they unthreaded the tape from the playback heads before commencing any high-speed winding. Later model VHS machines did not perform this unthreading step, as head-tape contact is no longer an impediment to fast winding.
Specifications
- Tape Width: 12.70 mm (1/2 inch)
- Tape speed: 3.335 cm/s for NTSC, 2.339 cm/s for PAL
- Record Time: Up to 6 hours (SP) using thin tape. Normal tape has a maximum of 3 hours.
- Video bandwidth: Approx 3 MHz
- Horizontal resolution: Approx 240 lines
- Vertical resolution: 486 lines for NTSC, 576 lines in PAL
For more information on the VHS format, please visit Wikipedia: http://en.wikipedia.org/wiki/VHS This Link Will Open A New Window
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