Dynamic random access memory

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Dynamic random access memory (DRAM) is a type of random access memory that stores each bit of data in a separate capacitor within an integrated circuit. Since real capacitors leak charge, the information eventually fades unless the capacitor charge is refreshed periodically. Because of this refresh requirement, it is a dynamic memory as opposed to SRAM and other static memory.

The advantage of DRAM is its structural simplicity: only one transistor and a capacitor are required per bit, compared to four transistors in SRAM. This allows DRAM to reach very high density. Unlike flash memory, it is volatile memory (cf. non-volatile memory), since it loses its data when the power supply is removed.

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News tagged with dynamic random access memory

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Elpida Completes Development of 1-Gigabit GDDR5

Elpida Completes Development of 1-Gigabit GDDR5

Technology / Semiconductors

created Nov 20, 2009 | popularity 5 / 5 (1) | comments 0

Elpida Memory, Japan's leading global supplier of Dynamic Random Access Memory, today announced that it had developed a 1-gigabit GDDR5 (product name: EDW1032BABG) that operates at a world-class high speed ...


Elpida Unveils Industry's First 2-Gigabit DDR2 Mobile RAM

Technology / Semiconductors

created Sep 29, 2009 | popularity not rated yet | comments 0

Elpida Memory, Japan's leading global supplier of Dynamic Random Access Memory (DRAM), today announced that it had developed the industry's first 2-gigabit DDR2 Mobile RAM.


Taiwan Memory Company is set to form a partnership with Japan's Elpida Memory Inc

Taiwan's TMC to team up with Elpida of Japan

Technology / Semiconductors

created Apr 01, 2009 | popularity not rated yet | comments 0

Taiwan Memory Company (TMC), a new government-backed firm set up to consolidate the island's memory-chip industry, said Wednesday it will form a partnership with Japan's Elpida Memory Inc.


DRAM Bandwidth

Elpida Introduces Industry's First x32-bit 1-Gigabit XDR DRAM

Technology / Semiconductors

created Jan 20, 2009 | popularity 5 / 5 (1) | comments 0

Elpida, Japan's leading global supplier of Dynamic Random Access Memory, today introduced the industry's first 1-Gigabit XDR DRAM based on a x32-bit configuration.





Search results for dynamic random access memory


High-tech holiday gift ideas for $50 and $100

Electronics / Consumer & Gadgets

created Nov 18, 2009 | popularity not rated yet | comments 1

Picking a Christmas gift for the nerd in your life is never easy. In the holiday stampede, it's all too easy to end up with an outdated gadget or obsolete program. And mistakes can be costly.


Oak Ridge 'Jaguar' supercomputer is World's fastest

Oak Ridge 'Jaguar' supercomputer is World's fastest

Electronics / Hardware

created Nov 16, 2009 | popularity 4.5 / 5 (13) | comments 2

An upgrade to a Cray XT5 high-performance computing system deployed by the Department of Energy has made the "Jaguar" supercomputer the world's fastest. Located at Oak Ridge National Laboratory, Jaguar is ...


Amnesia-Like Behavior Returns on Spirit

Amnesia-Like Behavior Returns on Spirit

Space & Earth / Space Exploration

created Oct 31, 2009 | popularity 4.8 / 5 (8) | comments 3

(PhysOrg.com) -- Until Oct. 24, NASA's Mars Exploration Rover had gone more than six months without an episode of amnesia-like symptoms like those that appeared on four occasions earlier this year.


Intel Reports Breakthrough in Stacked, Cross Point Phase Change Memory Technology

Technology / Semiconductors

created Oct 29, 2009 | popularity 3.9 / 5 (11) | comments 4

Intel Corp. and Numonyx today announced a key breakthrough in the research of phase change memory (PCM), a new non-volatile memory technology that combines many of the benefits of today's various memory types.


Review: $99 WikiReader is a pocket encyclopedia (AP)

Review: $99 WikiReader is a pocket encyclopedia

Electronics / Consumer & Gadgets

created Oct 28, 2009 | popularity 4 / 5 (2) | comments 0

(AP) -- When I was a kid, my dad bought a copy of the Encyclopedia Britannica. It had 32 volumes and took up 4 feet in the book case. I loved to sit on the couch and flip through it, reading articles at random.


What Comes After Hard Drives?

What Comes After Hard Drives?

Electronics / Hardware

created Oct 23, 2009 | popularity 4.1 / 5 (34) | comments 36

(PhysOrg.com) -- The ability to store and retrieve data is an important component of today's computers, as well as other modern electronic devices such as cell phones, video game consoles, and camcorders. ...


Review: Windows 7 strong, but don't pay to upgrade (AP)

Review: Windows 7 strong, but don't pay to upgrade

Technology / Software

created Oct 14, 2009 | popularity 1.9 / 5 (19) | comments 7

(AP) -- Next week, Microsoft is releasing Windows 7, a slick, much improved operating system that should go a long way toward erasing the bad impression left by its previous effort, Vista.


DOE to explore scientific cloud computing at Argonne, Lawrence Berkeley National Laboratories

Technology / Computer Sciences

created Oct 14, 2009 | popularity not rated yet | comments 0

Cloud computing is gaining traction in the commercial world, but can such an approach also meet the computing and data storage demands of the nation's scientific community? A new program funded by the American Recovery and ...


Researchers save electricity with low-power processors and flash memory

Electronics / Hardware

created Oct 14, 2009 | popularity 3.3 / 5 (8) | comments 0

Researchers at Carnegie Mellon University and Intel Labs Pittsburgh (ILP) have combined low-power, embedded processors typically used in netbooks with flash memory to create a server architecture that is fast, but far more ...


New Giorgio Armani Samsung smartphone

New Giorgio Armani Samsung smartphone

Electronics / Consumer & Gadgets

created Oct 12, 2009 | popularity 1 / 5 (2) | comments 0

Giorgio Armani and Samsung Electronics have presented the new Giorgio Armani-Samsung smartphone.



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