PPT ON Blu ray disc

1. BY – AVINASH MAURYA IT 6 th SEM Roll No-0829213008

2. 1. Introduction. 2. What is Holographic memory? 3. What is HVD? 4. Structure of HVD. 5. How HVD Works? I. Writing Data II. Reading Data 6. Advantages of HVD 7. Limitations AND Challenges 8. How HVD compares with other storage device? 9. Conclusion

10. The HVD System: Reading Data In order to retrieve and reconstruct the holographic page of data stored in the crystal, the reference beam is shined into the crystal at exactly the same angle at which it entered to store that page of data.

12. HVD Compares With Other Storage Device Blu-ray HD-DVD HVD Initial cost for recordable disc Approx. $18 Approx. $10 Approx. $120 Initial cost for recorder/player Approx. $2,000 Approx. $2,000 Approx. $3,000 Initial storage capacity 54 GB 30 GB 300 GB (max 3.9 TB) Read/write speed 36.5 Mbps 36.5 Mbps 1 Gbps

13. Capacity: 700 mb Capacity: 30-50Gb Capacity: 1-4TB Capacity: 4.7Gb