CD player in 1970. Following litigation, Sony and Philips licensed Russell's patents (then held by a Canadian company, Optical Recording Corp.) in the 1980s. The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. After a year of experimentation and discussion, the "Red Book" CD-DA standard was published in 1980. After their
Video gaming in the Netherlands projects, with assessment based on their behaviour and learning within those projects. Rotterdam University One of those schools is Rotterdam University. They have a minor Gamedesign and Development for example where students have to create several games within a short amount of time. First they learn to create a 2D android game within 6 weeks. Then they learn to create a 3D game within 13 weeks total. The Philips CD-i ("Compact Disc Interactive"), first released in 1991, is an interactive multimedia CD player developed and marketed by the Dutch electronics manufacturer Royal Philips Electronics N.V. This category of device was