HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Sherlock Ohms

Case of the Data-Corrupting Pocket

Page 1 / 2 Next >
View Comments: Newest First|Oldest First|Threaded View
Page 1/4  >  >>
270mag
User Rank
Iron
Humans,
270mag   5/6/2013 5:08:39 PM
NO RATINGS
There's that pesky human element again. You just can't get around people using your stuff.

OLD_CURMUDGEON
User Rank
Platinum
Re: Disks and magnets
OLD_CURMUDGEON   10/2/2012 9:56:21 AM
NO RATINGS
As far as Data Corruption & Tremors, is concerned, since you reference many decades ago as the reference, maybe it was because disk crashes were very prevalent back then.  The read/write head technology wasn't as mechanically secure as it is nowadays, and any low frequency vibration could cause the head to literally plop down (a computerese technical term!) onto the spinning platter, literally causing it to dig into the highly polished & coated surface, thus causing the "crash".

Cncerning the IVORY soap commercials, going back as long as I can remember into the 1940s, that was their slogan ...... "So pure, it floats".  And, you're exactly correct .... it was to counter some "modern" soap products that included perfumes, and other additives which some claimed detracted from the purity of the soap product.  I guess IVORY still floats .... we don't use it ..... have "graduated" to more modern alternatives.  Oh, well, time marches on!!

Tool_maker
User Rank
Platinum
Re: Disks and magnets
Tool_maker   10/2/2012 9:35:36 AM
NO RATINGS
No actually this was told to me by a my boss shortly after he came to the company for which I worked it the late 70's. This was a time when companies were first moving into computerized inventories etc. We were advised to always keep our back-up files at a remote location. I asked why and was given the tremors explanation. He claimed to have experienced the corrupted data/tremors relationship.

As to Ivory soap, I recall a study in the early 70's, I think by Consumers Union that the claim was true. All Ivory were claiming was that it was soap. No detergents and no by products or impurities, and that claim was factual. Then again that was 40+ years ago so I may be in error.

OLD_CURMUDGEON
User Rank
Platinum
Re: Disks and magnets
OLD_CURMUDGEON   10/2/2012 8:56:06 AM
NO RATINGS
IF you read about it, or was told about tremors & data corruption being from a "source" on the internet, it's probably a bunch of malarkey!!!!!  Just like IVORY soap commercials of decades ago, "It's 99.9% pure, so it gfloats!"  Well, what you read on the internet is also 99.9% "PURE" ....... pure B.S., that is!!!

notarboca
User Rank
Gold
Re: Data Transfer
notarboca   9/29/2012 5:13:03 PM
NO RATINGS
Wow, great to hear about old technologies in everyone's collection.  I still have a working Sony Betamax (suitcase sized)!

Tool_maker
User Rank
Platinum
Re: Disks and magnets
Tool_maker   9/27/2012 4:18:50 PM
NO RATINGS
  I am not very computer savy. I know how to do what I know how to do and all else is witchcraft. I have been told that earth tremors can corrupt data on magnetic media. Is this true? If so, why? How big of a tremor does it take?

OLD_CURMUDGEON
User Rank
Platinum
Re: Data Transfer
OLD_CURMUDGEON   9/24/2012 8:44:11 AM
NO RATINGS
Enjoyed reading of your collection!  Ours is not so large, but we do have a significant collection of LP's, dating from the 1950s forward, mostly the classics, Broadway show tunes, & some early R&R.  And, we have a significant collection of VHS tapes dating from that era, which play quite well on our recorders, a PANASONIC unit & a ZENITH unit.  Unfortunately, the SONY unit gave up the ghost due to an idler roller problem, which was unrepairable.  That broke my heart because the ONE (SONY) remote controller also handled all the functions of the 30 year old SONY 26" console TV, which continues to produce an excellent picture.  SONY, the ONE & ONLY!!!

Our stereo setup also has a DUAL changer & a KENWOOD dual deck Cassette recorder/playback unit.  When cassettes were popular, I always bought the best quality tapes that were available.  It just made sense then, and I'm glad that I did it.

I am NOT averse to advances in technology.  IF I were, I certainly would not have chosen a design engineering career, but I question the pace of new technology introduction presently.  I believe that it has been raised to a fever pitch for NO real meaningful end, other than to say, "OH!, look what we just invented!"  Without treading into the "green" minefield, the only people I see benefitting are the landfill operators, as we turn yesterday morning's wunder-product into digestible material for "the smasher"!

failureindesign
User Rank
Gold
Re: We've come a long way.
failureindesign   9/21/2012 6:00:53 PM
NO RATINGS
The part they leave out when tooting DVDs for long term storage (50-100 year) is that you must use actual "archival quality" DVDs. They are manufactured differently to prevent deterioration of the metallized recording surface.

They can be bought but not at general retail outlets (eg, Staples, Wal-Mart, etc.) and the price is not for the faint of heart.

For example, the list price on Verbatim 95355 (DVD-R 4.7GB 8X 50 / spindle) are $160 but you can get them for $80 over at Amazon.

For archiving lots of files permanently (200 year rating), you'll need archival bluray like Delkin Devices' archival blu-ray discs (BD-R 25GB 4X 10 / spindle). Amazon has them for $250; but they ship for free! LoL

Still cheaper and more reliable than tape drives or NAS boxes I suppose. :-)

 

Tool_maker
User Rank
Platinum
Re: Data Transfer
Tool_maker   9/13/2012 1:11:26 PM
NO RATINGS
Now somebody hit a nerve. Why the full warm sound of vinyl records was ever replaced by the mechanics of digital has always been a mystery to me. I know records could not be played in a moving car, but tape recorders took car of that. I also have thousands of vinyl discs and even a few bakelite 78's. They are decades old and still faithfully perform.

Rob Spiegel
User Rank
Blogger
Re: We've come a long way.
Rob Spiegel   9/5/2012 5:09:41 PM
NO RATINGS
The drive weighed 150 pounds? That's amazing. And a plastic housing the size of a large pizza!

Page 1/4  >  >>
Partner Zone
More Blogs from Sherlock Ohms
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
Design News Webinar Series
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 22 - 26, MCU Software Development – A Step-by-Step Guide (Using a Real Eval Board)
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: September 30 - October 2
Sponsored by Altera
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service