pctechguide.com

  • Home
  • Guides
  • Tutorials
  • Articles
  • Reviews
  • Glossary
  • Contact

LIMDOW Data Storage

Light Intensity Modulated Direct OverWrite technology uses a different write technology which significantly improves on the performance levels of earlier MO devices and claims to be a viable alternative to hard disk drives in terms of performance and cost of ownership.

LIMDOW disks and drives work on the same basic principle as a standard MO drive: the write surface is heated up and takes on a magnetic force applied from outside. But instead of using a magnetic head in the drive to make the changes, the magnets are built into the disk itself.

The LIMDOW disk has two magnetic layers just behind the reflective writing surface. This write surface is even more clever than MO as it can take magnetism from one of those magnetic layers when it has been heated up to one temperature; but if it has been heated up further, it will take its polarity from the other magnetic layer. To write the data onto the disk, the MO drive’s laser pulses between two powers.

At high power, the surface heats up more and takes its magnetic charge from the north pole magnetic layer. At the lower power, it heats up less and takes its magnetic charge from the south pole layer. Thus, with LIMDOW the MO write process is a single-stage affair, bringing write times back up to where they should be – if not competing head on with a hard disk, at least out by only around a factor of two.

LIMDOW became established in the second half of 1997, strengthening MO in its traditional market like CAD/CAM, document imaging and archiving, and moving it into new areas. With search speeds of less than 15ms and data transfer rates in excess of 4 MBps, LIMDOW MO has become a serious option for audio-visual and multimedia applications. The data rates are good enough for storing audio and streaming MPEG-2 video, which brings MO back into the equation for video servers in areas such as near-video-on-demand.

Apart from making MO competitive on write times, LIMDOW leads the way towards higher-capacity MO disks. Because the magnetic surface is right next to the writing surface (rather than somewhere outside the disk itself) the magnetic writing can be done at a much higher resolution – in fact, the resolution of the laser spot doing the heating up. In the future, as the spot goes down in size, with shorter wavelength reddish lasers and then the promised blue laser, the capacity of the disk can jump up to four times the current 2.6GB or more.

Share this:

  • Click to share on Twitter (Opens in new window)
  • Click to share on Facebook (Opens in new window)

Related

Filed Under: Removable Storage

Latest Articles

Cloud communications made easy with 5 simple questions

Cloud communications have been enjoying a huge boost in popularity in recent years. In a world of increasingly agile business models, traditional on-premise PBX systems simply won’t cut it anymore. Cloud communications, on the other hand, are flexible enough to offer, fast responsive change to meet … [Read More...]

How to Remove Avast Enhanced Protection Mode

Easiest Removal Option: Remote Repair: Paying an expert to remove this threat is always the easiest option. It's also the most expensive. PCTechGuide.com has reviewed several remote computer repair companies and we recommend PC Ninja This is a small computer repair company (Two brick and … [Read More...]

FPM DRAM

All types of memory are addressed as an array of rows and columns, and individual bits are stored in each cell of the array. With standard DRAM or FPM DRAM, which comes with access times of 70ns or 60ns, the memory management unit reads data … [Read More...]

2021 PC Hardware Releases to Bolster Your Gaming

If you are a PC gamer, then chances are you are looking to upgrade your kit over the coming year. However, a lot of money can go into building the … [Read More...]

New Transfer Feature in Dropbox Enable Sharing files with Third Parties

Dropbox has been a popular P2P sharing platform for many years. They don't announce new features as often as other applications, since they have a … [Read More...]

Ransomware Operators Find Data Theft Profitable

How valuable is your data? That’s not a question that organizations or individuals have to ask themselves all that often. You might know the market … [Read More...]

Engineers Encounter the Quantum Challenge with Computers Running a Hundred Million Times Faster

Quantum computers have been a subject of discussion for many years. They have probably been something that philosophers and technology pundits have … [Read More...]

Transferring Image Files from Your Cell Phone Without Cables or Email

You don't have a cable available to transfer the photos from your cell phone to your computer? You don't feel comfortable sending them through your … [Read More...]

Why Drupal Accessibility is Vital for Your Website

Drupal may not be as popular as WordPress, but it is still used in over 1 million websites. The Internet might be more conducive to our needs if more … [Read More...]

Guides

  • Computer Communications
  • Mobile Computing
  • PC Components
  • PC Data Storage
  • PC Input-Output
  • PC Multimedia
  • Processors (CPUs)

Recent Posts

Which UK cities have the best network coverage?

The UK’s network connectivity is above average when compared to other countries, sitting at around 77% 4G availability nationwide, for example, and … [Read More...]

Search Help

The search box found to the top right of each screen offers the following search options: Site Glossary Web (Google) Glossary Using this … [Read More...]

Hard Drive Preperation

Before you start, make sure you have at hand everything you may need to perform the installation. This'll include a Phillips screwdriver, an … [Read More...]

[footer_backtotop]

Copyright © 2021 About | Privacy | Contact Information | Wrtie For Us | Disclaimer | Copyright License | Authors