This Week In Tech History: The Magic Of Magnetic Recording (the Ampex VR1000/Mark IV)

Forbes.com reports from November 30, 1956

CBS goes on air with the first videotape delayed broadcast, Douglas Edwards and The News, using the Ampex Mark IV.  Ampex introduced the videotape recorder on April 14, 1956, at the National Association of Radio and Television Broadcasters in Chicago.

Wikipedia:

Ampex’s invention revolutionized the television production industry by eliminating the kinescope process of time-shifting television programs, which required the use of motion picture film…The Ampex broadcast video tape recorder facilitated time-zone broadcast delay so that networks could air programming at the same hour in various time zones… While [Ampex’s] quadruplex recording system per se is no longer in use, the principle evolved into the helical scanning technique used in virtually all video tape machines, such as those using the consumer formats known as VHS and the briefly successful Sony Betamax format…

Read more at http://www.forbes.com/sites/gilpress/2015/11/29/this-week-in-tech-history-the-magic-of-magnetic-recording/

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