SlideShare a Scribd company logo
Aparentemente, estes tres dispositivos de
almacenamento parecen iguais, pero non o
son,son diferentes en canto a capacidade, eficacia
e nos reproductores que se lles poden aplicar a
cada un deles.
O CD, disco compacto, é un disco óptico utilizado
para almacear datos en información dixital, o seu
mecanismo de lectura ou escritura vai por láser
infravermello.
Nel pódense
diferenciar as
seguintes
partes: a guía
interna, a
externa e a
área de datos
James Rusell, Washington, inventa o CD en 1970,
pero non se comercializa ata 1983 ca axuda de
Philips e Sony.
O CD descúbrese grazas a que James buscaba
algo para mellorar o sistema de grabación de
música.
O DVD, disco versatil dixital, é un disco para
almacenamento de datos, este dispositivo fai
referencia á multitude de maneiras nas que se
poden almacenar datos.
O seu
mecanismo
de escritura
e lectura é o
láser
vermello.
O DVD non foi inventado por unha soa persoa, senón
que Philips, Sony, Toshiba e Panasonic Corp
xuntáronse para crear un dispositivo de
almacenamento óptico de alta densidade, esto
finalizouse en 1996.
O Blu Rai é un disco óptico empleado para vídeos
en alta definición, ten maior capacidade de
almacenamento que o CD e que o DVD. O
mecanismo de lectura e escritura é o láser azul.
Shüji Nakamura é o inventor do láser azul, que é
necesario para o Blu Rai, aínda que os méritos
son para Sony e Philips, que foron quenes
patentaron a idea no 2002.
Datos importantes dos tres dispositivos, o CD,
DVD e Blu Rai:
http://es.slideshare.net/stteffanya/unidad-de-cd-dvd
https://ntsi-prrpp-online.wikispaces.com/Diferencias
http://www.abueloinformatico.es/vertutoriales.php?i
Sabela Piñeiro Fernández 1º Bacharelato A.

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Cd-Dvd-BluRai

  • 1.
  • 2. Aparentemente, estes tres dispositivos de almacenamento parecen iguais, pero non o son,son diferentes en canto a capacidade, eficacia e nos reproductores que se lles poden aplicar a cada un deles.
  • 3. O CD, disco compacto, é un disco óptico utilizado para almacear datos en información dixital, o seu mecanismo de lectura ou escritura vai por láser infravermello. Nel pódense diferenciar as seguintes partes: a guía interna, a externa e a área de datos
  • 4. James Rusell, Washington, inventa o CD en 1970, pero non se comercializa ata 1983 ca axuda de Philips e Sony. O CD descúbrese grazas a que James buscaba algo para mellorar o sistema de grabación de música.
  • 5. O DVD, disco versatil dixital, é un disco para almacenamento de datos, este dispositivo fai referencia á multitude de maneiras nas que se poden almacenar datos. O seu mecanismo de escritura e lectura é o láser vermello.
  • 6. O DVD non foi inventado por unha soa persoa, senón que Philips, Sony, Toshiba e Panasonic Corp xuntáronse para crear un dispositivo de almacenamento óptico de alta densidade, esto finalizouse en 1996.
  • 7. O Blu Rai é un disco óptico empleado para vídeos en alta definición, ten maior capacidade de almacenamento que o CD e que o DVD. O mecanismo de lectura e escritura é o láser azul.
  • 8. Shüji Nakamura é o inventor do láser azul, que é necesario para o Blu Rai, aínda que os méritos son para Sony e Philips, que foron quenes patentaron a idea no 2002.
  • 9. Datos importantes dos tres dispositivos, o CD, DVD e Blu Rai: