Download on video

Video technology developed in its infancy in the form of so-called cathode ray tube or valve known as cathodic beam cathode ray tube short CRT, is an electronic valve and produces a flood of electrons in the form of precise beam. This valve is used in electronic radar devices in television sets. And several new technologies for video has emerged afterwards. And Charles Kinsburg research team manager for Impex has developed the first practical videotape documentary video tape recorder or VTR. In 1951 Zarol video documentary captures the vivid picture of the TV camera by converting electronic impulses to the camera and store information inside a magnetic videotape. Video recorder was sold for $ 50,000 in 1956, and one video tape was costing $ 300 per hour recording. Prices gradually declined during the later years, in 1971, Sony Corp. started selling video cassette documentary video cassette recorder to the public. After the DVD in 1997 and the invention of bluegrass-ray Disc in 2006 video documentary sales dropped after allowing computers to capture and store, modify and send video files .