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How does a Solid State Drive (SSD) work differently from a H
Transcript of How does a Solid State Drive (SSD) work differently from a H
How does a Solid State Drive (SSD) work differently from a Hard Disk Drive (HDD)?
Once the read-write head arrives on a certain location on a platter, an electromagnet produces a magnetic field, which aligns data-carrying domains in the underlying track.
Each domain can be aligned in one of two possible directions, either 1 or 0.
As these alignments change, they form patterns that correspond to discrete chunks of digital information
Printed Circuit Board
Primary Storage Component in SSD:
the non-volatile NAND flash memory is being used because of the lower cost of NAND flash memory, ability to retain data without constant power supply
NAND flash memory stores data in individual memory cells, each cell consists of a single transistor called the Floating Gate Metal-Oxide Surface Field Effect Transistor (FGMOSFET) that can store electrons
2 Types of NAND-Flash:
1) SLC (Single-Level Cell):stores 1 bit, either a 1 or a 0 per cell
2) MLC (Multi-Level Cell): stores 2 bits per cell
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Improved Reliability (MTBF)
How does a Hard Disk Drive (HDD) work?
Super Talent, . Super Talent Technology, Inc, "SLC vs. MLC: An Analysis of Flash Memory." Accessed April 7, 2014. http://www.supertalent.com/datasheets/SLC_vs_MLC whitepaper.pdf
Rollins, Doug. Storage Review, "Media Management in Solid State Drives: Multistep WRITE Operations." Accessed April 7, 2014. http://www.storagereview.com/media_management_in_solid_state_drives_multistep_write_operations
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PC Plus, . TechRadar, "How SSDs work." Last modified June 26, 2011. Accessed April 7, 2014. http://www.techradar.com/news/computing-components/storage/how-ssds-work-969473
Hogan, Cormac. "An Introduction to Flash Technology." Last modified December 6, 2012. Accessed April 7, 2014. http://cormachogan.com/2012/12/06/an-introduction-to-flash-technology/
Turakhia, Bhavin. "Solid State Drives vs Hard disk drives." Bhavin's Blog (blog), January 1, 2009. http://bhavin.directi.com/solid-state-drives-vs-hard-disk-drives/ (accessed April 7, 2014).
Tech Journal, . "How Does Flash Memory Store Data?." Last modified Undated. Accessed April 7, 2014. http://www.tdk.co.jp/techjournal_e/vol01_ssd/contents03.htm
Picture & Photography References
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