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HOLOGRAPHIC STORAGE [9 records]

Record 1 2024-01-27

English

Subject field(s)
  • Computer Graphics
  • Computer Memories
  • Transformers and Inductance (Electronics)
CONT

Some holographic storage devices claim a density of one terabit, or one trillion bits, in one cubic centimeter... Compact Discs hold... approximately 250, 000 times less information than those holograms would. The theoretical promises of holographic data storage hold much promise for people trying to find ways to retrieve extremely large amounts of data very quickly.

French

Domaine(s)
  • Infographie
  • Mémoires (Informatique)
  • Transformateurs et inductance (Électronique)
CONT

Au lieu de lire les bits en ordre séquentiel, comme c'est le cas des disques durs et des disques optiques, un dispositif holographique peut lire des millions de pixels à la fois - ce qui permettrait, en théorie toujours, d'obtenir un débit inégalé de plusieurs gigabits par seconde.

Spanish

Save record 1

Record 2 2021-07-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Remote Sensing
CONT

Digital holographic interferometry is based on the digital recording and storage of two or more holograms in different states of the object(where the illumination with different laser light colors may be regarded as different states of the object).

French

Domaine(s)
  • Optique
  • Infographie
  • Télédétection

Spanish

Save record 2

Record 3 2012-09-10

English

Subject field(s)
  • Storage Media (Data Processing)
CONT

Holographic Versatile Disc(HVD) is an advanced optical disc technology still in the research stage which would greatly increase storage over Blu-ray and HD-DVD [high-definition digital versatile disc] optical disc systems. It employs a technique known as collinear holography, whereby two lasers, one red and one blue-green, are collimated in a single beam. These disks have the capacity to hold up to 3. 9 terabytes(TB) of information, which is approximately eighty times the capacity of Blu-ray Disc.

Key term(s)
  • holographic versatile disk

French

Domaine(s)
  • Supports d'information (Informatique)
CONT

[...] le HVD (holographic versatile disc, disque holographique polyvalent) n'a en fait rien à voir avec ses prédécesseurs optiques que sont CD, DVD et Disque Blu-ray.Contrairement à ces derniers, qui sont une succession de creux lus par un laser, le HVD est en fait un hologramme de 12 centimètres avec une capacité de 3,9 téraoctets (capacité nominale du double). Le HVD est cependant toujours lu par un laser. Il s'agit d'un laser vert, ce qui permet d'envisager un hypothétique «HVD-bluray» balayé par un laser bleu et d'une capacité encore plus grande.

Spanish

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Record 4 2010-04-07

English

Subject field(s)
  • Types of Documentation (Library Science)
  • Micrographics
DEF

A high density microfiche storage technique employing holographic encoding and retrievable only by means of special electronic holofiche readers.

French

Domaine(s)
  • Documentation (Bibliothéconomie)
  • Micrographie
DEF

Microfiche (ou microphotographie) obtenue par la technique holographique (en trois dimensions) dont la surface de 4 par 6 pouces peut contenir jusqu'à 20 000 pages 8 1/2 par 11 pouces qui permet de retrouver une information originale même si une partie de la fiche a été abîmée, déchirée ou détruite.

Spanish

Save record 4

Record 5 2006-01-24

English

Subject field(s)
  • Storage Media (Data Processing)
  • IT Security
DEF

A type of memory card with very large storage capacity which uses laser or holographic techniques to register informations.

French

Domaine(s)
  • Supports d'information (Informatique)
  • Sécurité des TI
DEF

Type de carte informatique à très grande capacité de stockage et dont les informations sont enregistrées au laser ou par holographie.

Spanish

Save record 5

Record 6 2005-05-17

English

Subject field(s)
  • Computer Memories
DEF

A storage device that records binary information in the form of holograms, which are produced (as interference patterns) on photographic or photochromic media by means of laser beams, and are read by means of low-power laser beams.

CONT

Holographic memory offers the possibility of storing 1 terabyte (TB) of data in a sugar-cube-sized crystal. A terabyte of data equals 1,000 gigabytes, 1 million megabytes or 1 trillion bytes. Data from more than 1,000 CDs could fit on a holographic memory system. Most computer hard drives only hold 10 to 40 GB of data, a small fraction of what a holographic memory system might hold.

French

Domaine(s)
  • Mémoires (Informatique)
DEF

Dispositif de stockage qui enregistre l'information binaire sous forme d'hologrammes.

Spanish

Campo(s) temático(s)
  • Memorias (Computadoras)
DEF

Dispositivo de almacenamiento que registra la información binaria en forma de hologramas, que se producen (como modelos de interferencias) sobre medios fotográficos o fotocrómicos por medio de rayos láser, y se leen mediante haces láser de baja potencia.

Save record 6

Record 7 2004-09-29

English

Subject field(s)
  • Computer Memories
  • Computer Hardware
  • Lasers and Masers
DEF

... computer storage that uses laser beams to store computer-generated data in three-dimensions.

OBS

Holostore is a method of data storage. The data is stored as a holographic(3-dimensional) image by passing light through light-sensitive crystals that retain the light patterns.

French

Domaine(s)
  • Mémoires (Informatique)
  • Matériel informatique
  • Masers et lasers
DEF

Technologie tri-dimensionnelle utilisant le laser comme moyen de stockage.

OBS

Technique mise au point par IBM et Lucent Technologies. Cristal photosensible à trois dimensions offrant une possibilité de stockage équivalent à 50 DVD.

Spanish

Campo(s) temático(s)
  • Memorias (Computadoras)
  • Equipo físico de computadora (Hardware)
  • Láser y máser
DEF

Método para almacenar los datos, haciendo una fotografía multidimensional en un medio de almacenamiento.

Save record 7

Record 8 2004-08-24

English

Subject field(s)
  • Computer Memories
  • Lasers and Masers
DEF

Recording of data on polymer strips by means of a laser beam.

OBS

Compare bit storage, holographic storage, optical storage. See also "two-photon excitation".

French

Domaine(s)
  • Mémoires (Informatique)
  • Masers et lasers
OBS

Comparer «mémoire à laser».

Spanish

Campo(s) temático(s)
  • Memorias (Computadoras)
  • Láser y máser
Save record 8

Record 9 1991-05-28

English

Subject field(s)
  • Computer Graphics
DEF

The superimposing of holographic pages in a thick, erasable storage material by changing the reference and object beams.

French

Domaine(s)
  • Infographie

Spanish

Save record 9

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