Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Fluorescent Multi-layer Disc
Post: #1


Requirements for removable media storage devices (RMSDs) used with personal computers have changed significantly since the introduction of the floppy disk in 1971. At one time, desktop computers depended on floppy disks for all of their storage requirements. Even with the advent of multigigabyte hard drives, floppy disks and other RMSDs are still an integral part of most computer systems, providing.

¢ Transport between computers for data files and software
¢ Backup to preserve data from the hard dive
¢ A way to load the operating system software in the event of a hard failure.

Data storage devices currently come in a variety of different capacities, access time, data transfer rate and cost per Gigabyte. The best overall performance figures are currently achieved using hard disk drives (HDD), which can be integrated into RAID systems (reliable arrays of inexpensive drives) at costs of $10 per GByte (1999). Optical disc drives (ODD) and tapes can be configured in the form of jukeboxes and tape libraries, with cost of a few dollars per GByte for the removable media. However, the complex mechanical library mechanism serves to limit data access time to several seconds and affects the reliability adversely.

Most information is still stored in non-electronic form, with very slow access and excessive costs (e.g., text on paper, at a cost of $10 000 per GByte).Some RMSD options available today are approaching the performance, capacity, and cost of hard-disk drives. Considerations for selecting an RMSD include capacity, speed, convenience, durability, data availability, and backward-compatibility. Technology options used to read and write data include.

¢ Magnetic formats that use magnetic particles and magnetic fields.
¢ Optical formats that use laser light and optical sensors.
¢ Magneto-optical and magneto-optical hybrids that use a combination of magnetic and optical properties to increase storage capacity.

The introduction of the Fluorescent Multi-layer Disc (FMD) smashes the barriers of existing data storage formats. Depending on the application and the market requirements, the first generation of 120mm (CD Sized) FMD ROM discs will hold 20 - 100 GigaBytes of pre -recorded data on 12 - 30 data layers with a total thickness of under 2mm.In comparison, a standard DVD disc holds just 4.7 gigabytes. With C3D's (Constellation 3D) proprietary parallel reading and writing technology, data transfer speeds can exceed 1 gigabit per second, again depending on the application and market need.


Increased Disc Capacity
DVD data density (4.7 GB) on each layer of data carriers up to 100 layers. Initially, the FMD disc will hold anywhere from 25 - 140 GB of data depending on market need. Eventually a terabyte of data on a single disc will be achievable.

Quick Parallel Access and Retrieval of Information
Reading from several layers at a ime and multiple tracks at a time nearly impossible using the reflective technology of a CD/DVD - is easily achieved in FMD. This will allow for retrieval speeds of up to 1 gigabyte per second.

Media Tolerances
By using incoherent light to read data the FMD/FMC media will have far fewer restrictions in temperature range, vibration and air- cleanness during manufacturing. And will provide a considerably more robust data carrier than existing CD and DVDs.
Post: #2
to get information about the topic flurescent multilayer disc full report,ppt, related topic refer the link bellow

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: matlab model fluorescent lamp, multi lingual, multi agricutter, fluorescent adolescent lyrics kate nash, fluorescent dyes, fluorescent lamp model in matlab, flourocent multi layer disk doc,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Multi signature smart paper boy 2 1,260 11-01-2016 02:00 PM
Last Post: seminar report asees
  HOLOGRAPHIC VERSATILE DISC A SEMINAR REPORT Computer Science Clay 20 28,451 16-09-2015 02:18 PM
Last Post: seminar report asees
  Human Robot Interaction in Multi-Agent Systems pdf computer topic 0 485 25-03-2014 09:43 PM
Last Post: computer topic
Star MULTI TOUCH A SEMINAR REPORT Computer Science Clay 7 12,641 19-11-2012 09:47 PM
Last Post: Guest
  A Multi-Dimensional Approach to Internet Security ( Download Full Seminar Report ) computer science crazy 3 3,181 01-11-2012 12:55 PM
Last Post: seminar details
  Seminar on Byzantine-ResilientSecure Multicast Routing in Multi-hop Wireless Networks computer girl 0 534 11-06-2012 05:40 PM
Last Post: computer girl
  Holographic Versatile Disc (HVD) seminar projects crazy 1 1,435 04-02-2012 11:54 AM
Last Post: seminar addict
  Holographic Versatile Disc computer science crazy 1 1,443 04-02-2012 11:54 AM
Last Post: seminar addict
  OPTICAL DISC DATA SECURITY seminar projects crazy 4 4,845 03-02-2012 10:32 AM
Last Post: seminar addict
  Monitoring the Application Layer-DDoS Attack for Popular Websites full report project topics 12 10,048 26-01-2012 10:17 AM
Last Post: seminar addict