Waar komt de cd vandaan?
Het cd-systeem is gezamenlijk ontwikkeld door Philips en Sony/CBS. De eerste cd ter wereld werd gefabriceerd op 17 augustus 1979 door het Philipsonderdeel Polygram te Langenhagen. De introductie van de eerste spelers vond plaats in Japan in oktober 1982; de rest van de wereld volgde in maart 1983.
Hoe oud is de dvd?
Een dvd is een digitaal optisch formaat in de vorm van een optische schijf met een diameter van 12 centimeter. Het is uitgevonden in 1995 door Philips, Sony, Toshiba, en Panasonic, en werd in 1997 in Nederland geïntroduceerd.
What is a compact disc?
The compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony to store and play digital audio recordings. It was released in 1982 branded as Digital Audio Compact Disc. The format was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including
How do Compact Disc players work?
The laser scanning method employed in compact disc playersAn infrared laser is focused onto the metallic reflective layer of the disc, where a spiral track of “pits” and “lands” represents the zeros and ones of digital signals.
What does CD Mean?
The compact disc ( CD) is a digital optical disc data storage format that was co-developed by Philips and Sony to store and play digital audio recordings. In August 1982, the first compact disc was manufactured. It was then released in October 1982 and branded as Digital Audio Compact Disc .
What is a CD+EG disc?
CD + Extended Graphics (CD+EG, also known as CD+XG) is an improved variant of the Compact Disc + Graphics (CD+G) format. Like CD+G, CD+EG uses basic CD-ROM features to display text and video information in addition to the music being played. This extra data is stored in subcode channels R-W. Very few, if any, CD+EG discs have been published.