Video tapes and discs in Roanoke are devices that record and play back video using magnetic tape. They have revolutionized broadcast and recording. Video signals use more bandwidth which is why a high head-to-tape speed is required to record and reproduce the high bandwidth signals of video. All modern videotape systems use helical scan and cartridges. Since the advent of digital video and computerized video processing, optical disc media and digital video recorders can now perform the same role as video tapes. These devices also offer improvements like random access to any scene in the recording and ‘live’ time shifting, and are likely to replace videotapes in many situations.

Earth Day 2013

Earth Day evolved over a period of seven years starting in 1962. The Founder of Earth Day is Senator Gaylord Nelson. Prior to that the state of our environment was not an issue in the politics of our country. Senator Nelson approached President Kennedy with his beliefs regarding environmental issues. Despite the President going on a conservation tour, the idea..