- published: 22 Aug 2013
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Video is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion.
Video technology was first developed for cathode ray tube (CRT) television systems, but several new technologies for video display devices have since been invented. Charles Ginsburg led an Ampex research team developing the first practical video tape recorder (VTR). In 1951 the first video tape recorder captured live images from television cameras by converting the camera's electrical impulses and saving the information onto magnetic video tape.
Video recorders sold for $50,000 in 1956, and videotape cost $300 per one-hour reel. However, prices steadily dropped over the years; in 1971, Sony began selling videocassette recorder (VCR) tapes to the public. After the invention of the DVD in 1997 and Blu-ray Disc in 2006, sales of videotape and tape equipment plummeted.
Later advances in computer technology allowed computers to capture, store, edit and transmit video clips.
Randolph Frederick "Randy" Pausch (October 23, 1960 – July 25, 2008) was an American professor of computer science and human-computer interaction and design at Carnegie Mellon University (CMU) in Pittsburgh, Pennsylvania.
Pausch learned that he had pancreatic cancer in September 2006, and in August 2007 he was given a terminal diagnosis: "3 to 6 months of good health left". He gave an upbeat lecture titled "The Last Lecture: Really Achieving Your Childhood Dreams" on September 18, 2007, at Carnegie Mellon, which became a popular YouTube video and led to other media appearances. He then co-authored a book called The Last Lecture on the same theme, which became a New York Times best-seller.
Pausch died of complications from pancreatic cancer on July 25, 2008.
Pausch was born in Baltimore, Maryland, and grew up in Columbia, Maryland. After graduating from Oakland Mills High School in Columbia, Pausch received his bachelor's degree in computer science from Brown University in May 1982 and his Ph.D. in computer science from Carnegie Mellon University in August 1988.[not in citation given] While completing his doctoral studies, Pausch was briefly employed at Xerox Palo Alto Research Center and Adobe Systems.