What does DD stand for?

Double Density (5 1/4" floppy disk format)

This definition appears very rarely and is found in the following Acronym Finder categories:

Information technology (IT) and computers

Other Resources:

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Don't Die (gaming) Donald Duck Done Deal Donnie Darko (movie) Dono Dedit (Latin: gave this offering) Doordarshan (Indian TV network) Doppler Displacement Double Damage (gaming) Double Dang Double Dare		Double Desktop Double Diamond (band) Double Diamond (English beer) Double Diffused Double Dip Double Domination (gaming) Double Down (Blackjack) Double Dragon (game) Double-Differencing Double-Double (double cream, double sugar in coffee)

Samples in periodicals archive:

It has also a double density EPS liner, which is a fundamental energy engrossing material fitted end-to-end the inner.

Icon Air Frame Infernal Amazing and Amazing Helmet

The rubber soles are of double density making them highly durable and resistant to lots of wear and tear.

ONeal Offroad Apparel 2009 Boasts New Styles in MX Gear for Men and ...

For example, we had a clear demand from motorsport for double density and we knew in the longer term, it will be the traditional military market that will use that technology.

Deutsch: connecting with Formula One

Company Introduces New Double Density Universal Edge QAM REDWOOD CITY, Calif.

BigBand Surpasses 600,000 Shipped Edge QAMs

This will require rewinding the Electrolyzer tower so that the coils are double density or only about 1/4" or 6 mm apart.

How Much HHO or Hydroxy Does the Electrolyzer Produce?

Fast-growing Live Streaming Video Site Deploys Rackable[TM] Half-Depth Servers to Double Density and Cut Power Costs in Half FREMONT, Calif.

Justin.tv Selects SGI[R] To Support Booming Web Traffic

2) Cost savings based on internal pricing comparing the HP ProLiant DL160 G6 server to the HP ProLiant SL2x170z server; power savings based on HP comparisons of traditional rack servers with SL2x170z; double density based on fitting two server nodes in the physical space of one traditional 1U node.

HP Advances Scale-out Computing with Breakthrough Data Center Solution

MOST50 uses a double density coding scheme to double the bandwidth over the first generation, MOST25, while maintaining the same physical transmission frequency.

MOST[R] Networking Solution Adopted in First Lexus Platform