Memory
The first element of Operating systems we study is memory. The textbook is limited to those elements of memory that were available at the time of its publication, but other technologies have recently emerged. One of these memory related technology is magnetoresistive RAM, or magnetic RAM which uses the term MRAM. Webopedia defines MRAM and links to other, older types of RAM such as DRAM. Wired has an article written in 2000 about the emergence of instant access memory. Read these two sites and then comment in this blog on the rapid changes in computer technology.
This is a beginning blog assignment, so it is important to participate. Remember to include your name in the comment. Don't be shy -- just write a sentence or two about what these article contributed to your knowledge about RAM.
Blog on!
6 Comments:
-- Magnetoresistive RAM (MRAM): MRAM is a non-volatile memory (NVM) that holds data magnetically and therefore no power is required to sustain the data. Unlike other memory technologies, data is not stored as electric charge of current flows. The data in MRAM is stored by means of change in resistance of MRAM cells when their magnetic orientation is switched. Therefore the state of the bit in MRAM is detected as a change in resistance.
http://www.tmcnet.com/usubmit/2007/05/29/2669299.htm
This would be great for a for Laptops and "Green" PC; Sometimes you cannot find a place to plug in (AC) when you are flying or someone else is using the AC outlet; having devices that use little power is sought-after by sharp PC shopper and supplier.
Manny Larson
It seems to me that MRAM will definitely be a new technology that will be embraced by the industry since everything is going mobile. Anything that saves battery power will increase the productivity of the users and will be welcomed by both manufacturers and users
-carlos
What would some disadvantages would MRAM be? I've always been cautious to keep anything magnetic away from the cpu or its components. MRAM is described as having millions of magnetic 'sandwiches' within the wiring of the system. Would this require new magnetic-safe components?
MRAM (magnetoresistive random access memory) is a method of storing data bits using magnetic charges instead of the electrical charges used by DRAM (dynamic random access memory). Scientists define a metal as magnetoresistive if it shows a slight change in electrical resistance when placed in a magnetic field. By combining the high speed of static RAM and the high density of DRAM, proponents say MRAM could be used to significantly improve electronic products by storing greater amounts of data, enabling it to be accessed faster while consuming less battery power than existing electronic memory.
jennifer
http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci539346,00.html
I found the article on MRAM very interesting, but like Chad, I would want to know limitations and or disadvantages... dorothy
Philips self-destructing MRAM on the way!
http://www.engadget.com/2006/09/25/philips-self-destructing-mram-on-the-way/
Post a Comment
<< Home