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Evolution of Optical Storage in Computer Memory

  • Pragya RaiEmail author
  • Ankesh Prasad
  • S. Maneesha Reddy
  • Ayes Chinmay
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 37)

Abstract

Computers have become increasingly important in our lives because they supply with unmatched access to an extensive load of information. This revolution has been made possible by decreasing the cost of storing data and increasing storage capacity for even smaller devices. Optical storage of data gives us higher memory capacity than the older magnetic storage because of the laser beams used that can control and focus much more precisely than the conventional tiny magnetic heads, thereby allowing the condensation of data into a much smaller space. For example, with focused beams of light, the surface storage density accessible is approximately 1/(2 Wavelength). But by storing information throughout the quantity at a density of 1/(3 Wavelength), the capability of a similar disk can be raised 2000 fold, to 8 Terabytes (TB).

Keywords

Optical storage Holographic storage 3D optical storage WORM disk 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Pragya Rai
    • 1
    Email author
  • Ankesh Prasad
    • 1
  • S. Maneesha Reddy
    • 1
  • Ayes Chinmay
    • 1
  1. 1.Department of Computer Science and EngineeringInternational Institute of Information TechnologyBhubaneswarIndia

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